---
product_id: 239056835
title: "AAA Rechargeable Lithium Batteries, 4 Pack 1.5V Kratax 1100mWh Li-ion Triple A Batteries with Fast Battery Charger, Constant Voltage Output, 1600 Cycles Long-Lasting for Household and Office Devices"
brand: "kratax"
price: "฿2530"
currency: THB
in_stock: true
reviews_count: 13
category: "Kratax"
url: https://www.desertcart.co.th/products/239056835-aaa-rechargeable-lithium-batteries-4-pack-1-5v-kratax-1100mwh
store_origin: TH
region: Thailand
---

# 1100mWh high capacity 4-fold multi-protection 1-hour fast charge AAA Rechargeable Lithium Batteries, 4 Pack 1.5V Kratax 1100mWh Li-ion Triple A Batteries with Fast Battery Charger, Constant Voltage Output, 1600 Cycles Long-Lasting for Household and Office Devices

**Brand:** kratax
**Price:** ฿2530
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Smarter, Last Longer — Never Run Out When It Counts!

## Quick Answers

- **What is this?** AAA Rechargeable Lithium Batteries, 4 Pack 1.5V Kratax 1100mWh Li-ion Triple A Batteries with Fast Battery Charger, Constant Voltage Output, 1600 Cycles Long-Lasting for Household and Office Devices by kratax
- **How much does it cost?** ฿2530 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/239056835-aaa-rechargeable-lithium-batteries-4-pack-1-5v-kratax-1100mwh)

## Best For

- kratax enthusiasts

## Why This Product

- Trusted kratax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Longevity:** Over 1600 recharge cycles—equivalent to 1500 disposable batteries—delivering sustainable power and savings.
- • **Ultra-Fast 1-Hour Recharge:** Cut downtime drastically with rapid charging powered by intelligent IC control and Type-C 5V/2A input.
- • **Consistent 1.5V Power Output:** Experience unwavering voltage from full charge to zero, ensuring peak device performance without sudden drops.
- • **Smart Multi-Protection System:** Built-in safeguards against overcharge, overvoltage, overcurrent, and over-discharge for worry-free use.
- • **Eco-Friendly & Lightweight Design:** Reduce your carbon footprint with low self-discharge, 20% lighter than NiMH, and free from toxic metals.

## Overview

Kratax AAA Rechargeable Lithium Batteries deliver a stable 1.5V output with 1100mWh capacity, charging fully in just 1 hour via a Type-C fast charger. Engineered for over 1600 recharge cycles, these batteries outperform traditional NiMH cells in longevity and reliability. Featuring advanced multi-protection and low self-discharge, they are lightweight, eco-friendly, and ideal for high-drain household and office devices.

## Description

Product description Kratax 4 Pack High Capacity 1100mWh AAA Rechargeable Lithium Batteries with 1 hour Fast Charger. Right charging steps Power up the charger first. Then insert AAA batteries. If the light does not come on after you insert the AAA battery into the charger for the first time, remove the battery and reinsert it after 15 seconds. Why choose Kratax AAA Lithium-ion rechargeable batteries? Size : 44.5mm*10.5mm (Our batteries have built-in protection plates, so they last a LITTLE LONGER than disposable batteries) Cyclest: ＞1600 times , 1600+ times charge and discharge Discharge Current: 1000mA constant current Multi-protection function : Our batteries and chargers have passed ROHS, CE, CQC, PSE, etc. certification. Built-in protection device to prevent Overcharge, Overvoltage, Overcurrent, Over Discharge, Reverse Charge and Short-circuit protection, better ensure the safety of the battery during use and charging. The battery adopts the exhaust explosion-proof design, and the safety level is high . Charging time than the traditional Ni-MH rechargeable battery saving about half the time. Low self-discharge, is about 0.03% per month, which is less than 1/100 of Ni-MH batteries. The weight is about 19g, is 20% lower than Ni-MH batteries. Suitable for all kinds of high-power demand electrical device! Toys, Remote Controls, Smart home devices, Microphone, Electric shaver, Household Office Devices, Flashlight, Wireless cameras, Remote controls. Quick Charger Charging Time: About 1 hours Input: Type-C 5V 2A Output: 500mA*4Ch Independent charging channel Charging Voltage：5V Red Indicator --- Charging Green Indicator --- Full charged (The blue light at the positive pole of the battery is up when charging, and goes off when the battery is full) Red flashing --- Error ----The charger adopts a high-precision IC control system with battery identification and data reading capabilities. If other types of batteries are mistakenly charged, the charger will issue a flashing red light warning message. Constant voltage output 1.5V Lithium-ion battery is a new generation of battery, so this Kratax charger is only suitable for this new type of battery, not for the traditional 3V-3.7V Li-ion battery and NiMh battery. Constant Voltage Output 1100mWh, Longer life than normal Alkaline batteries and other rechargeable battery. Stable outputs 1.5 voltage from 100% to 0% electric capacity, providing constant voltage and best performance in high current and voltage device. Durable & Environment Free of Lead and Mercury, rechargeable batteries can reduce the harm of regular batteries to the environment, more economical and environmental. More Durable Each battery has passed 72H aging test before shipment, long-term storage, ready to use. It is recommended to use Kratax battery and Kratax charger as a set, not to mix with other brands. QUESTIONS Q: Lithium-ion batteries and disposable batteries, which lasts longer in the flashlight? A: The disposable battery has a long working time, but the lithium-ion battery can be recycled, the overall use time is longer, and the cost performance is higher. The disposable battery can maintain high brightness due to the relatively high voltage during early operation. Then as the voltage decreases, the brightness will become lower and lower until the user replaces the battery. The Lithium-ion battery voltage is constant, so the flashlight can maintain the highest brightness in the setting until the battery stops outputting, so the working time of a single lithium-ion battery will be about half less than that of a disposable battery. Q: Why does it feel like a disposable battery discharges more power than a Li-ion battery? A: Because the disposable battery does not need to be charged, it can use up all the power. Lithium-ion batteries require a secondary charge of the battery, so some of the power needs to be retained to maintain the battery's activity, So it will feel like the disposable battery releases more power. Q: Why do lithium-ion batteries feel a little bigger than alkaline batteries? A: The size of our battery is 44.5mm*10.5mm, because the lithium-ion battery is equipped with a protective plate, it may be 0.1~0.2mm larger than the length and diameter of a few alkaline batteries, mainly depends on What product to compare with.

Review: >>> DOES THE JOB - > After several weeks, and each battery having been recharged several times, the charger and all 4 batteries are working well. > Charges fast, especially if you have a 2amp power source (see below). Presumably, you can leave the batteries in the charger when not in use (as is the case with "smart" NiMH chargers) --- but I've never found this explicitly stated. > Capacity — Adequate, comparable to NiCd or NiMH. But, more of that capacity may be usable with rechargeable lithiums (see below). Beware that Kratax and other rechargeable lithium battery vendors rate the batteries in mWh, rather than standard MAh. 1100mWh = 733 MAh --- which is about right for a rechargeable AAA battery whether NiHM or Lithium. > Life per charge — depends on your equipment. Some equipment won’t work properly with less than 1 volt. For NiMH batteries which start with only 1.2 volts, the voltage may drop below 1 volt with ⅔ of the charge still remaining unused. For non-rechargeable alkalines, which start at 1.5 volts, the voltage may drop below 1 volt with ½–⅓ of the charge still remaining unused. Lithiums discharge at 1.5 volts until empty — so the full charge can be used. But, on equipment which works well with only 0.5 volts, you might not notice much difference between NiMH and lithiums. In my MP3 player, the lithiums last roughly 1.5 to 2x longer than NiMHs or alkalines. > Life (charge/recharge cycles). Recharge cycles are never as many as claimed. Most NiMH claim 1000 or so cycles, but I've found that the practical life of high quality NiMHs is only about 125 cycles (defined as being able to hold a charge overnight, and operate my mp3 player for at least 4 hours). Only time will tell how many useful recharge cycles are in the lithiums. > Shelf Life (i.e., how long a charged battery holds a charge). NiMH loose self-discharge over a matter of weeks, months at most; standard non-rechargeable alkalines may last a year or two. Lithium batteries claim to hold a charge for 5 to 10 years (the longer times for non-rechargeable lithiums). So, non-rechargeable lithium batteries are nominally ideal for equipment which is likely to remain unused for years (such as emergency equipment) or low drainage items (e.g. smoke alarms, motion alarms). Why not rechargeable lithiums for such equipment? Do you really want to invest in $7 each for rechargeable lithiums? when you can get non-rechargeable lithiums for $1.50 each? But, beware that shelf-life is in unopened packages, not necessarily when installed in equipment. On many modern electronics (even battery-powered electronics) "off" is not truly "off", but rather, is "standby" -- still draining some power. I find it very suspicious how often my MP3 player was operating well at midnight, when I turned it off, but is completely dead in the morning. > Rechargeable lithiums cost $7 each with a dedicated charger, compared $2 each for rechargeable NiMH. But, in equipment which doesn’t work well with NiMH batteries, your only practical alternative is non-rechargeable alkalines at about $0.50 each. > SHORTCOMING: Since the voltage remains at 1.5v until nearly the moment of complete exhaustion, most battery meters will report “full battery” until moments before the battery is completely drained. If low battery warning is important to you, use NiMH batteries, or investigate other brands of lithium batteries, which are designed to progressively lower voltage as the charge is used. MY USE > Purchased for my mp3 player, which malfunctions when the voltage of rechargeable NiMH batteries drops much below 1 volt. So far, no malfunctions with my mp3 player when using rechargeable lithium batteries. > Will purchase more for my TV remote controls, which simply will not work with NiMH for more than 1/2 hour. LIGHTS — The three different sets of indicator lights are confusing — but all that matters is the square LEDs above each battery. > Single Round LED: Green = charger receiving current. > Square LED above each battery: Red=battery charging; Green=charged > Light on top of batteries: Blue=battery charging; no light if charged or not charging. POWER SOURCE — The charger does not come with a USB adapter. To get the 1 hour charging times claimed, your USB adapter (or port) needs to produce 5v at 2 amps. There is a good chance that the old USB adapter in the bottom of your electronics drawer produces only 0.5a --- you still get reasonably fast charging, but not as fast as with a 2a adapter. A “convenient” multi-USB adapter may not produce the nominal amperage if more than one device is plugged into it — so, for fastest charging, I suggest a single-plug 2amp USB adapter, that you label for use with your battery charger, and use only for that purpose. CAUTION — Lithium batteries are inherently 3.7 volts, and until recently 1.5v rechargeable lithium batteries were not available. Internal circuitry in the 1.5 volt lithiums steps down the voltage from 3.7v to 1.5v. Most 3.7v rechargeable lithium batteries are odd sizes to avoid confusion with standard AAA and AA batteries. > In fact, I have 3.7v rechargeable lithium batteries, and a dedicated charger that I use for a (great) flashlight. My 3.7v rechargeable lithiums are an odd size (a little larger than an AA)—but would physically fit in a spring-adjusting charger meant for 1.5v C-size batteries (but would not charge properly). > Conversely, my spring-adjusting charger meant for 3.7v lithiums will (physically) accommodate AA and AAA size batteries . But 3.7v and 1.5v batteries and chargers are not cross- compatible. > There are similarly at least three different competing designs of lithium 1.5v AA and AAA batteries available at this time, which may not be cross-compatible. The simplest solution is to pick a brand of 1.5 volt lithium batteries, and purchase your batteries and charger of the same brand—typically the charger with 4 batteries is only $3–$5 more than the cost of the 4 batteries. Buy the batteries as a package with the dedicated charger. Caveat—the most common battery design (which are sold with identical chargers), are probably cross-compatible. COMPLAINTS OF OTHER REVIEWERS > Yes, sometimes batteries die early. It’s happened to me many times with NiCds and NiMH. There is more that can go wrong with 1.5v lithiums, because each one has its own built-in computer. So the rate of defective 1.5v lithiums is probably higher than other rechargeables. So, test your batteries when you get them, and return any to Amz that fail. Trying to charge the 1.5v lithiums in an incompatible charger might burn out the tiny computer in the batteries. > Otherwise reading the negative reviews, I have the impression that most problems users are having is caused by improper charging --- mostly using battery chargers not meant for 1.5v AAA or AA lithium batteries. — I suspect than many purchasers bought the batteries only, and attempted to charge them in NiCd or NiMH battery chargers. Indeed I was tempted to do so, since I have an expensive NiCd/NiMH charger, and it would seem that "1.5v is 1.5v" and the batteries/chargers should be cross-compatible. But, both the sellers and review articles claim that the batteries/chargers NOT cross-compatible. Solution, shell out the extra $3–$5 for the same brand and model charger when you purchase the batteries — cheap insurance. Why are the NiMH and 1.5 Lithium battery chargers incompatible? Presumably because the brains of "smart" NiMH chargers are built into the chargers. The "brains" of 1.5v rechargeable lithium battery chargers are built into the individual batteries. Practically speaking, my bet is that the "1.5 Lithium battery chargers" are really just "battery holders", and are essentially empty shells inside, and are incapable of fast-charging "dumb" NiMH batteries. — I suspect that some folks (like me) who have chargers designed for 3.7 lithium batteries may say to themselves “Hey, I already have a lithium battery charger — I don’t need to buy another lithium battery charger”. 1.5v and 3.7v batteries/chargers are not cross-compatible. 3.7v rechargeable lithium batteries are not "smart". Most likely a charger meant for 3.7v batteries would burn out the tiny computer of a 1.5v lithium battery. — One person complained that he/she/them could not charge the 1.5v lithiums with a solar charger (of course not, it wasn't meant to charge lithium batteries). Another person could not charge the batteries from another battery "booster" device. Who knows what voltage/amperage those power sources deliver?
Review: Almost Perfect - These batteries are almost perfect. They are lithium ion, not Ni-cad, which means that they will hold a charge longer and last longer than Ni-cad rechargeables. Also, they charge faster than Ni-cads. These batteries go from zero to fully charged in about an hour. Ni-cads take several hours. And, they are really affordable. I paid $55.88 for eight AAAs, which I can use almost indefinitely. Compare that to Ni-cad rechargeables, or alkaline batteries that are good for one use. The only (slight) downside is that they come uncharged, so you have to charge them before you can use them, and, you have to know when they are fully charged. When you put them in the charger a blue light shows at the + end of the batteries, with a red bar above each battery on the charger. I found this confusing. On all of my other rechargeables , blue indicates fully charged. Here it doesn't. Here, fully charged is indicated by the red bar on the charger turning GREEN, as in "GO." Minor annoyance for charging the first time. I look forward to using these batteries for a long time and am planning to buy more.

## Features

- 🔋🔋High Capacity: 1100mWh AAA Batteries Rechargeable constant output at 1.5V from 100% to 0% electric capacity, providing constant voltage and best performance in high current and voltage device, the traditional battery products can’t do that, and the voltage drops rapidly as the power decreases during use. Continuous 1.5A discharge.
- 🔋🔋Fast charging: About 1 hour to full charged. Much faster and more durable than traditional Ni-MH rechargeable batteries which need 4 hours to fully charged. Our AAA rechargeable battery with a high-power cell with fully intelligent control IC chip, making it more reliable to use. The cycle time is more than 1600 times, one lithium battery is equivalent to 1500 disposable batteries(Tested by Kratax).
- 🔋🔋Multi-Protection: There are four protections for this AAA battery, with intelligent control of the entire charging process, built-in protection device to prevent Overcharge, Overvoltage, Overcurrent, Over discharge, the charger has reverse charge protection can protect the battery and charger very good. Our batteries and chargers have passed ROHS, CE, CQC, PSE, etc. certification.
- 🔋🔋Durable & Environmental: Low self-discharge, is about 0.03% per month, which is less than 1/100 of Ni-MH batteries.The weight is about 19g, is 20% lower than Ni-MH batteries. Free of Lead and Mercury, rechargeable batteries can reduce the harm of regular batteries to the environment, more economical and environmentally friendly.
- 🔋🔋Independent charging Channels: Input: Type-C 5V 2A. One battery can be charged separately. ABS and PC flame retardant material keeps the hand feeling comfortable. Automatically power off when fully charged, it is safe and can extend battery cycle life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08HMKJM4L |
| Amperage | 1.5 Amps |
| Battery Charge Time | 1 Hours |
| Best Sellers Rank | #502,044 in Health & Household ( See Top 100 in Health & Household ) #130,154 in Household Supplies |
| Brand | Kratax |
| Color | 4pack AAA Batteries+Charger |
| Compatible Devices | Led lights, Remote, Torch, Toy |
| Current Rating | 500 Milliamps |
| Customer Reviews | 4.2 out of 5 stars 189 Reviews |
| Input Voltage | 5 Volts |
| Item Weight | 5.9 Ounces |
| Manufacturer | KrataxHKDirect |
| Number of Ports | 4 |
| Output Voltage | 1.5 Volts |
| Specification Met | RoHS, CE, PSE |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Kratax
- **Color:** 4pack AAA Batteries+Charger
- **Item Weight:** 5.9 Ounces
- **Output Voltage:** 1.5 Volts
- **Specification Met:** RoHS, CE, PSE

## Images

![AAA Rechargeable Lithium Batteries, 4 Pack 1.5V Kratax 1100mWh Li-ion Triple A Batteries with Fast Battery Charger, Constant Voltage Output, 1600 Cycles Long-Lasting for Household and Office Devices - Image 1](https://m.media-amazon.com/images/I/71vFjAd3nbL.jpg)
![AAA Rechargeable Lithium Batteries, 4 Pack 1.5V Kratax 1100mWh Li-ion Triple A Batteries with Fast Battery Charger, Constant Voltage Output, 1600 Cycles Long-Lasting for Household and Office Devices - Image 2](https://m.media-amazon.com/images/I/71xcJbCb0bL.jpg)
![AAA Rechargeable Lithium Batteries, 4 Pack 1.5V Kratax 1100mWh Li-ion Triple A Batteries with Fast Battery Charger, Constant Voltage Output, 1600 Cycles Long-Lasting for Household and Office Devices - Image 3](https://m.media-amazon.com/images/I/71aZsCej8tL.jpg)
![AAA Rechargeable Lithium Batteries, 4 Pack 1.5V Kratax 1100mWh Li-ion Triple A Batteries with Fast Battery Charger, Constant Voltage Output, 1600 Cycles Long-Lasting for Household and Office Devices - Image 4](https://m.media-amazon.com/images/I/71zjObolNuL.jpg)
![AAA Rechargeable Lithium Batteries, 4 Pack 1.5V Kratax 1100mWh Li-ion Triple A Batteries with Fast Battery Charger, Constant Voltage Output, 1600 Cycles Long-Lasting for Household and Office Devices - Image 5](https://m.media-amazon.com/images/I/71Hop6l+O1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ >>> DOES THE JOB
*by S***Y on January 17, 2024*

> After several weeks, and each battery having been recharged several times, the charger and all 4 batteries are working well. > Charges fast, especially if you have a 2amp power source (see below). Presumably, you can leave the batteries in the charger when not in use (as is the case with "smart" NiMH chargers) --- but I've never found this explicitly stated. > Capacity — Adequate, comparable to NiCd or NiMH. But, more of that capacity may be usable with rechargeable lithiums (see below). Beware that Kratax and other rechargeable lithium battery vendors rate the batteries in mWh, rather than standard MAh. 1100mWh = 733 MAh --- which is about right for a rechargeable AAA battery whether NiHM or Lithium. > Life per charge — depends on your equipment. Some equipment won’t work properly with less than 1 volt. For NiMH batteries which start with only 1.2 volts, the voltage may drop below 1 volt with ⅔ of the charge still remaining unused. For non-rechargeable alkalines, which start at 1.5 volts, the voltage may drop below 1 volt with ½–⅓ of the charge still remaining unused. Lithiums discharge at 1.5 volts until empty — so the full charge can be used. But, on equipment which works well with only 0.5 volts, you might not notice much difference between NiMH and lithiums. In my MP3 player, the lithiums last roughly 1.5 to 2x longer than NiMHs or alkalines. > Life (charge/recharge cycles). Recharge cycles are never as many as claimed. Most NiMH claim 1000 or so cycles, but I've found that the practical life of high quality NiMHs is only about 125 cycles (defined as being able to hold a charge overnight, and operate my mp3 player for at least 4 hours). Only time will tell how many useful recharge cycles are in the lithiums. > Shelf Life (i.e., how long a charged battery holds a charge). NiMH loose self-discharge over a matter of weeks, months at most; standard non-rechargeable alkalines may last a year or two. Lithium batteries claim to hold a charge for 5 to 10 years (the longer times for non-rechargeable lithiums). So, non-rechargeable lithium batteries are nominally ideal for equipment which is likely to remain unused for years (such as emergency equipment) or low drainage items (e.g. smoke alarms, motion alarms). Why not rechargeable lithiums for such equipment? Do you really want to invest in $7 each for rechargeable lithiums? when you can get non-rechargeable lithiums for $1.50 each? But, beware that shelf-life is in unopened packages, not necessarily when installed in equipment. On many modern electronics (even battery-powered electronics) "off" is not truly "off", but rather, is "standby" -- still draining some power. I find it very suspicious how often my MP3 player was operating well at midnight, when I turned it off, but is completely dead in the morning. > Rechargeable lithiums cost $7 each with a dedicated charger, compared $2 each for rechargeable NiMH. But, in equipment which doesn’t work well with NiMH batteries, your only practical alternative is non-rechargeable alkalines at about $0.50 each. > SHORTCOMING: Since the voltage remains at 1.5v until nearly the moment of complete exhaustion, most battery meters will report “full battery” until moments before the battery is completely drained. If low battery warning is important to you, use NiMH batteries, or investigate other brands of lithium batteries, which are designed to progressively lower voltage as the charge is used. MY USE > Purchased for my mp3 player, which malfunctions when the voltage of rechargeable NiMH batteries drops much below 1 volt. So far, no malfunctions with my mp3 player when using rechargeable lithium batteries. > Will purchase more for my TV remote controls, which simply will not work with NiMH for more than 1/2 hour. LIGHTS — The three different sets of indicator lights are confusing — but all that matters is the square LEDs above each battery. > Single Round LED: Green = charger receiving current. > Square LED above each battery: Red=battery charging; Green=charged > Light on top of batteries: Blue=battery charging; no light if charged or not charging. POWER SOURCE — The charger does not come with a USB adapter. To get the 1 hour charging times claimed, your USB adapter (or port) needs to produce 5v at 2 amps. There is a good chance that the old USB adapter in the bottom of your electronics drawer produces only 0.5a --- you still get reasonably fast charging, but not as fast as with a 2a adapter. A “convenient” multi-USB adapter may not produce the nominal amperage if more than one device is plugged into it — so, for fastest charging, I suggest a single-plug 2amp USB adapter, that you label for use with your battery charger, and use only for that purpose. CAUTION — Lithium batteries are inherently 3.7 volts, and until recently 1.5v rechargeable lithium batteries were not available. Internal circuitry in the 1.5 volt lithiums steps down the voltage from 3.7v to 1.5v. Most 3.7v rechargeable lithium batteries are odd sizes to avoid confusion with standard AAA and AA batteries. > In fact, I have 3.7v rechargeable lithium batteries, and a dedicated charger that I use for a (great) flashlight. My 3.7v rechargeable lithiums are an odd size (a little larger than an AA)—but would physically fit in a spring-adjusting charger meant for 1.5v C-size batteries (but would not charge properly). > Conversely, my spring-adjusting charger meant for 3.7v lithiums will (physically) accommodate AA and AAA size batteries . But 3.7v and 1.5v batteries and chargers are not cross- compatible. > There are similarly at least three different competing designs of lithium 1.5v AA and AAA batteries available at this time, which may not be cross-compatible. The simplest solution is to pick a brand of 1.5 volt lithium batteries, and purchase your batteries and charger of the same brand—typically the charger with 4 batteries is only $3–$5 more than the cost of the 4 batteries. Buy the batteries as a package with the dedicated charger. Caveat—the most common battery design (which are sold with identical chargers), are probably cross-compatible. COMPLAINTS OF OTHER REVIEWERS > Yes, sometimes batteries die early. It’s happened to me many times with NiCds and NiMH. There is more that can go wrong with 1.5v lithiums, because each one has its own built-in computer. So the rate of defective 1.5v lithiums is probably higher than other rechargeables. So, test your batteries when you get them, and return any to Amz that fail. Trying to charge the 1.5v lithiums in an incompatible charger might burn out the tiny computer in the batteries. > Otherwise reading the negative reviews, I have the impression that most problems users are having is caused by improper charging --- mostly using battery chargers not meant for 1.5v AAA or AA lithium batteries. — I suspect than many purchasers bought the batteries only, and attempted to charge them in NiCd or NiMH battery chargers. Indeed I was tempted to do so, since I have an expensive NiCd/NiMH charger, and it would seem that "1.5v is 1.5v" and the batteries/chargers should be cross-compatible. But, both the sellers and review articles claim that the batteries/chargers NOT cross-compatible. Solution, shell out the extra $3–$5 for the same brand and model charger when you purchase the batteries — cheap insurance. Why are the NiMH and 1.5 Lithium battery chargers incompatible? Presumably because the brains of "smart" NiMH chargers are built into the chargers. The "brains" of 1.5v rechargeable lithium battery chargers are built into the individual batteries. Practically speaking, my bet is that the "1.5 Lithium battery chargers" are really just "battery holders", and are essentially empty shells inside, and are incapable of fast-charging "dumb" NiMH batteries. — I suspect that some folks (like me) who have chargers designed for 3.7 lithium batteries may say to themselves “Hey, I already have a lithium battery charger — I don’t need to buy another lithium battery charger”. 1.5v and 3.7v batteries/chargers are not cross-compatible. 3.7v rechargeable lithium batteries are not "smart". Most likely a charger meant for 3.7v batteries would burn out the tiny computer of a 1.5v lithium battery. — One person complained that he/she/them could not charge the 1.5v lithiums with a solar charger (of course not, it wasn't meant to charge lithium batteries). Another person could not charge the batteries from another battery "booster" device. Who knows what voltage/amperage those power sources deliver?

### ⭐⭐⭐⭐⭐ Almost Perfect
*by B***I on October 28, 2023*

These batteries are almost perfect. They are lithium ion, not Ni-cad, which means that they will hold a charge longer and last longer than Ni-cad rechargeables. Also, they charge faster than Ni-cads. These batteries go from zero to fully charged in about an hour. Ni-cads take several hours. And, they are really affordable. I paid $55.88 for eight AAAs, which I can use almost indefinitely. Compare that to Ni-cad rechargeables, or alkaline batteries that are good for one use. The only (slight) downside is that they come uncharged, so you have to charge them before you can use them, and, you have to know when they are fully charged. When you put them in the charger a blue light shows at the + end of the batteries, with a red bar above each battery on the charger. I found this confusing. On all of my other rechargeables , blue indicates fully charged. Here it doesn't. Here, fully charged is indicated by the red bar on the charger turning GREEN, as in "GO." Minor annoyance for charging the first time. I look forward to using these batteries for a long time and am planning to buy more.

### ⭐⭐⭐⭐⭐ Good
*by D***N on November 9, 2025*

Hold decent charge

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