🔋 Charge smarter, last longer — never miss a beat with TecmateOptiMate!
The TecmateOptiMate Lithium 4s 6A TM391 is a cutting-edge 12.8V lithium battery charger and maintainer featuring a powerful 6A current, an advanced 10-step charging program, and integrated BMS wake-up mode. Designed specifically for LiFePO4 and LiFe batteries, it ensures optimal battery health and supports stable ECU programming with its unique TUNE mode.
| Manufacturer | TecMate |
| Brand | Tecmate |
| Model | OptiMate Lithium 4s 6A, TM391, 10-step 12.8V 6A Lithium Expert Battery Saving Charger & Maintainer |
| Item Weight | 9.6 ounces |
| Package Dimensions | 11.89 x 7.05 x 3.19 inches |
| Item model number | TM391 |
| Exterior | Machined |
| Manufacturer Part Number | TM391 |
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