






🔋 Charge smarter, race harder — never miss a beat with OptiMate Lithium 4s 6A!
The Tecmate OptiMate Lithium 4s 6A is a cutting-edge 12.8V lithium battery charger and maintainer featuring a powerful 6A current, a sophisticated 10-step charging program, and integrated BMS wake-up mode. Designed for high-performance LiFePO4 batteries, it ensures ultimate protection and stable support during ECU programming, making it the go-to choice for professional racers and enthusiasts.














| ASIN | B09Z71LQF9 |
| Best Sellers Rank | #77,570 in Automotive ( See Top 100 in Automotive ) #262 in Battery Chargers |
| Item model number | TM391 |
| Manufacturer | TecMate |
| Product Dimensions | 22.2 x 8.9 x 6.3 cm; 272.16 g |
D**D
I did a lot of research and I have used many different brands of chargers. The OptiMate series of chargers can't be beat. They are the most sophisticated and problem free chargers out there. I have a number of them and they always do the job. I have even been able to bring a couple of batteries back to life. Highly recommend this product in its many superior forms.
S**S
Good kit works great
R**B
Higher current charger enables me to reuse this for any other sized batteries I may have. BMS reset feature looks handy but have not had a chance to use it. Case seems really sturdy compared to other trickle charges I have, but they are rated 1 Amp and below...
A**R
Very nice charger but it is pricey compared to other models. That being said I love the quality of Optimate chargers and have several and they have all been reliable and helpful.
M**W
The manual has many modes of operation but it also functions perfect for a plug and play. I have a lithium ion battery on my motorcycle and it has kept the battery healthy in periods of no use.
Trustpilot
3 weeks ago
2 weeks ago