Optimate Lithium 4s 10A, TM-275v2, 10-Step 12.8V 10A Sealed Battery Saving Charger & maintainer

Great charger—reliable, easy to use, and completely hassle-free. Just plug it in and it gets to work. The indicator clearly shows whether the battery is charging or maintaining. Feels like a high-quality product.

I sure wish I knew what I know now 10 years ago. I wasted so much money on about 4 other chargers with low amps before. This is the level of charger I needed all along to charge my dead Li batteries when I was replacing them. Now I have 3 useless chargers and 2 Li batteries that are good again just sitting around lol

Don’t waste your time with other chargers. These are plug automatic and they actually work. I’ve seen and recovered batteries that other brands like CTEK and Noco have failed to recover.

charger for new lithium battery

Product works fine BUT the manual is very hard to understand and makes no sense. I'm an electrical engineer and typically have no problems with tech but this manual is USELESS. Tom Fisher EE

I picked the fastest shipping and it arrived fast!...like 2 days i think it was. Used it once on a EarthX battery worked great!