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🔋 Power your vintage rides and gadgets with confidence—because every charge counts!
The Mighty Max ML4-6 is a 6 Volt, 4.5 AH sealed lead acid rechargeable battery sold in a convenient 2-pack. UL certified and maintenance-free, it offers high discharge rates, wide operating temperature tolerance, and vibration resistance. Compact and versatile, it’s ideal for vintage motorcycles, ride-on toys, and other applications requiring reliable, long-lasting power backed by a one-year warranty.
| ASIN | B0889HJFMY |
| Amperage | 4.5 Amps |
| Antenna Location | Power Tool |
| Battery Capacity | 45 Amp Hours |
| Battery Cell Type | Lead Acid |
| Battery Weight | 4 Pounds |
| Best Sellers Rank | #13,673 in Health & Household ( See Top 100 in Health & Household ) #3 in 6V Batteries |
| Brand | Mighty Max Battery |
| Built-In Media | Battery |
| Compatible Phone Models | No Phone Models |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,619) |
| Item Dimensions | 2.76 x 1.89 x 4.21 inches |
| Item Type Name | lead_acid_battery |
| Item Weight | 4 Pounds |
| Manufacturer | Mighty Max Battery |
| Model Name | ML4-6MP21910666438 |
| Model Number | ML4-6MP21910666438 |
| Number of Batteries | 2 12V batteries required. (included) |
| Reusability | Rechargeable |
| Unit Count | 2.0 Count |
| Voltage | 6 Volts |
| Warranty Description | 1 Year Manufacturers Warranty |
A**R
Works fine for me.
Fit our older emergency light just fine. Fast delivery. Good price. As long as they are pretty cheap, I'll keep buying them every 3 or 4 years. But at some point it will make more sense to buy a modern exit light with NiCad batteries and LED bulbs instead of incandescent bulbs. The NiCad batteries last longer and aren't nearly as heavy this lead-acid type of battery. But I'm lazy and don't want to change the entire fixture. What do you do with an old emergency light? Throw it in the landfill I guess. That's wasteful. At least my local auto store will recycle this lead-acid battery.
I**S
Solid battery for kids motorcycle.
It did what it was supposed to. Came with zero charge. Charged the motorcycle overnight and it’s been running solid for a week now. I would say this battery was a good fit.
D**N
Very pleased with product and Customer service department
Ordered a 2-pack on 12/10/25 received on 12/12/25... The first battery I tried was not working and would not hold a charge. The second battery I tried was installed (Moultrie Deer Feeder) fit and works perfectly!!! I notified customer service by email and they responded on Monday morning. Resolved the issue immediately !!! I have the feeder set up to run twice a day and after a week the battery is still going strong..
I**7
Works great!
Matches my grandson’s ride on 6v pony perfect. Very easy to install, just loosen and unplug old battery and tighten and plug new battery, which by the way, comes already charged!
P**R
Rechargeable battery
Works great
D**I
Works well with Mini Bumper Car 🚙
The batteries were the perfect replacement for the mini bumper cars I purchased for my grandchildren. The new batteries got them going again and they love them easy to replace easy to recharge. The kids are loving their new toy.
A**R
Good replacement.
Good fit for my Coleman 5348-700 lantern.
D**L
Easy to install.
Great product for use on an automatic fish feeder. Last one lasted about 2 years.
R**Z
Genial, sirvió bastante bien, la ocupe para un montable y de inmediato se notó la respuesta, vamos a ver la durabilidad pero como veo si va bien
T**L
They call it Mighty Max, and I agree! For 3 years now, this little 6 volt battery has been used to honk the horn on an old truck that my grandkids play on. It has withstood three winters of -°30 weather and endless use from my grandkids, and without being recharged! It just keeps going! Five stars all the way.
D**S
The packaging is very well made, and the two battery showed a 6,3 volts charge at the box opening. Very good product to use with my trail cameras.
J**E
Was told this would fit and is the proper replacement but it wasn’t . Had to go through Amazon to get money back.
5**2
Battery arrived charged. Battery is very well packed and is of original quality of old battery. Functioning perfectly with no problems.
Trustpilot
2 weeks ago
2 months ago