---
product_id: 606566889
title: "Tecmate OptiMate Lithium 4s 6A, TM391, 10-step 12.8V 6A Lithium Expert Battery Saving Charger & Maintainer, Blue/Green"
brand: "tecmate"
price: "$1154580"
currency: COP
in_stock: true
category: "Tecmate"
url: https://www.desertcart.co/products/606566889-tecmate-optimate-lithium-4s-6a-tm391-10-step-12-8v
store_origin: CO
region: Colombia
---

# 6A high charging current 10-step advanced charging cycle Integrated BMS battery protection Tecmate OptiMate Lithium 4s 6A, TM391, 10-step 12.8V 6A Lithium Expert Battery Saving Charger & Maintainer, Blue/Green

**Brand:** tecmate
**Price:** $1154580
**Availability:** ✅ In Stock

## Summary

> 🔋 Charge smarter, race harder — never miss a beat with OptiMate Lithium 4s 6A!

## Quick Answers

- **What is this?** Tecmate OptiMate Lithium 4s 6A, TM391, 10-step 12.8V 6A Lithium Expert Battery Saving Charger & Maintainer, Blue/Green by tecmate
- **How much does it cost?** $1154580 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/606566889-tecmate-optimate-lithium-4s-6a-tm391-10-step-12-8v)

## Best For

- tecmate enthusiasts

## Why This Product

- Trusted tecmate brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **BMS Wake-Up Mode:** Safely revive batteries with integrated Battery Management System protection—no more dead starts.
- • **10-Step Smart Charging:** Experience precision with the most advanced 10-step charging and battery-saving program tailored for lithium batteries.
- • **Race-Ready Reliability:** Trusted by racers and dealers alike for high-performance lithium battery maintenance.
- • **Power-Packed 6A Charging:** Maximize your battery’s potential with rapid, efficient 6A current delivery.
- • **TUNE Mode for ECU Stability:** Keep your battery stable during critical ECU programming with dedicated TUNE mode.

## Overview

The Tecmate OptiMate Lithium 4s 6A is a professional-grade 12.8V lithium battery charger and maintainer featuring a powerful 6A current, an advanced 10-step charging program, and integrated BMS protection. Designed for high-performance LiFePO4 batteries, it includes a unique wake-up mode and TUNE mode for ECU programming, making it the go-to choice for racers and enthusiasts seeking reliable, expert battery care.

## Description

Tecmate OptiMate Lithium 4s 6A, TM391, 10-step 12.8V 6A Lithium Expert Battery Saving Charger & Maintainer, Blue/Green : desertcart.ae: Automotive

## Features

- More charging power and current at 6A!
- Ultimate protection for your high performance Lithium (LiFePO4 / LiFe / LFP) battery.
- Most advanced 10-step charging and battery saving program.
- BMS (Battery Management System) wake up mode safely wakes battery with integrated BMS protection out of sleep mode.
- TUNE mode provides stable battery support during ECU programming.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09Z71LQF9 |
| Best Sellers Rank | #197,129 in Automotive ( See Top 100 in Automotive ) #693 in Battery Chargers |
| Brand | Tecmate |
| Built-In Media | Battery Charger, weatherproof battery lead & battery clip set |
| Color | ['Blue'] |
| Current Rating | 6 Amps |
| Customer Reviews | 4.8 out of 5 stars 34 Reviews |
| Input Voltage | 240 Volts |
| Item Height | 6.3 centimeters |
| Item Type Name | Battery Charger |
| Item Weight | 9.6 Ounces |
| Manufacturer | TecMate |
| Mfr Part Number | TM391 |
| Output Voltage | 12.8 Volts (DC) |
| Specification Met | ecu |
| Warranty Description | 3 YEAR LIMITED WARRANTY |

## Product Details

- **Brand:** Tecmate
- **Colour:** ['Blue']
- **Item weight:** 9.6 Ounces
- **Output voltage:** 12.8 Volts
- **Specification met:** ecu

## Images

![Tecmate OptiMate Lithium 4s 6A, TM391, 10-step 12.8V 6A Lithium Expert Battery Saving Charger & Maintainer, Blue/Green - Image 1](https://m.media-amazon.com/images/I/81HNmmJBZrL.jpg)

## Frequently Bought Together

- Tecmate OptiMate Lithium 4s 6A, TM391, 10-step 12.8V 6A Lithium Expert Battery Saving Charger & Maintainer, Blue/Green
- Optimate cable O-127 ring terminal harness with integrated battery status / charge system monitor, 12.8V / 13.2V lithium powersport, smart

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**Shop now:** [https://www.desertcart.co/products/606566889-tecmate-optimate-lithium-4s-6a-tm391-10-step-12-8v](https://www.desertcart.co/products/606566889-tecmate-optimate-lithium-4s-6a-tm391-10-step-12-8v)

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-01-23*