






🔋 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 designed for high-performance LiFePO4 batteries. Featuring a powerful 6A current, an advanced 10-step charging program, and integrated BMS wake-up mode, it ensures optimal battery health and longevity. Its TUNE mode supports stable ECU programming, making it the go-to choice for racers and professionals seeking reliable, weatherproof battery maintenance.














| ASIN | B09Z71LQF9 |
| Best Sellers Rank | 300,276 in Automotive ( See Top 100 in Automotive ) 1,207 in Car Battery Charging Units |
| Brand | Tecmate |
| Colour | ['Blue'] |
| Customer Reviews | 4.8 4.8 out of 5 stars (36) |
| Date First Available | 17 Jan. 2024 |
| Guaranteed software updates until | unknown |
| Included components | Battery Charger, weatherproof battery lead & battery clip set |
| Item Weight | 9.6 Ounces |
| Item model number | TM391 |
| Package Dimensions L x W x H | 30.8 x 17.9 x 8.3 centimetres |
| Package Weight | 1.21 Kilograms |
| Part number | TM391 |
| Product Dimensions L x W x H | 22.2 x 8.9 x 6.3 centimetres |
S**S
Quality
Good kit works great
A**S
Optimate Lithium Battery Charger
Easy to fix up. Mounting screws used only at the top. Used existing cables from the battery just changed the dust cover. Pleased it's charging my Lithium motorcycle battery. I was gifted this. Extremely very happy.
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.
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.
C**D
OK
Trustpilot
1 month ago
1 month ago