OptiMate Lithium 4s 6A

MSRP $141.95

LITHIUM series: 10-step 12.8V 6A sealed battery saving charger & maintainer

OptiMate Lithium 4s 6A is the advanced ‘PRO’ battery charger for your performance/race motorcycle, car or craft – The racer / dealer’s choice!
optimate lithium battery charger vehicle range: motorcycle, motorbike, utv, side-by-side, car


Power reset rapidly re-energizes the battery.
bms battery management system of optimate lithium battery charger


Provides stable battery support during ECU programming / troubleshooting.
optimate lithium battery charger tune mode for vehicle tuning and troubleshooting


Fully automatic multi-step program brings the battery safely to full charge Connect to the battery and OptiMate Lithium 4s 6A does the rest, no supervision required!
optimate lithium battery charger multi-step charge program




For Li-Ion 12.8V / 13.2V power sport battery types made with LiFePO4 / LFP technology.

Automatically adjusts current to match battery size and condition.

Safe to leave connected. Full electronic protection.
Maintains battery at full charge and good health.
Low voltage recovery from as low as 0.5V.
Tests battery state of health.
Warns when battery damage is detected.
Energy saving technology.
Stand-by power less than 0.5W.
Efficient 24-7 battery maintenance.
Weatherproof. Rated for use down to -40°C / -40°F.



OptiMate Lithium is recommended by Honda, Yamaha, Kawasaki, KTM and Husqvarna and global Lithium battery manufacturers Anti-gravity, Super-B and Earth-X. Racers and dealers choose OptiMate Lithium 4s 6A!

You don't need to make a selection. No matter if you have a 12.8V or 13.2V lithium battery. The OptiMate 4s 6A will automatically and safely charge, test and maintain your battery.

Yes you can. The AmpMatic charge control for Lithium adjusts current to match the battery size and condition. Small battery gets less, large battery gets more.


Available models are listed below. 

All OptiMate battery chargers listed below accept global input of 100-240Vac 50-60Hz, only the power plug TYPE is different to comply with national / regional electrical safety laws.

TYPE A - Canada / United States of America

TYPE C - Europe

TYPE G - United Kingdom

TYPE I - Australia / New zealand

Find my plug?        

SKU: TM-39x Category:


Includes 2 battery connection cable accessories

  1. Battery lead (replacement SKU O-01) – fits to battery in your vehicle for convenient ‘quick-connect’ charging access.










Adjustable: Fits two bolt sizes

  2. Battery clips (replacement SKU O-04) –

Fits securely to square, round or flat battery posts.



In store packaging


MSRP = Manufacturer Recommended Retail Pricing is displayed above. (Currency selector > top right).
Price in EURO and GBP include VAT of 20%. VAT in your region may differ. Price in USD and CAD do not include sales tax.

TecMate do not sell product directly to the consumer. Find your nearest retailer by selecting the appropriate model below.

OptiMATE Lithium 4s 6A
SKU TM-390

OptiMATE Lithium 4s 6A
SKU TM-391

OptiMATE Lithium 4s 6A
SKU TM-391

OptiMATE Lithium 4s 6A
SKU TM-392


IDEAL FOR: Lithium (LiFePO4) 12.8/13.2V batteries from 3 - 72Ah

CHARGING AMPS: 6A (Ampmatic current)

CHARGING VOLTS: nominal: 12.8V range: 0.5V - 14.4V

OPERATION:  Fully automatic


FEATURES: Starts from 0.5V with continuous monitoring / testing of charge acceptance or bad / shorted cell condition. Unnecessary (and unsafe) charging of a bad battery is prevented.

USE: Indoor / Outdoor (lowest temperature: -40°F / -40°C).

INPUT: Global (100-240V 50-60Hz), high efficiency (CEC listed).

STYLE: Weatherproof case with wall mounts, with 6ft / 180cm AC supply lead and 6ft / 180cm charge lead ending in SAE connector.

SAVE : Low Volt Start of 0.5V + 3 step low volt save & test.

SAFE: No risk of overcharging. Totally safe for vehicle electronics. Sparks suppressed. Safe for long-term battery maintenance. Automatic shut-down if short-circuited or battery disconnected.

INCLUDED: weatherproof battery lead & battery clip set.

WARRANTY: 3-year limited replacement warranty.



Model up till 2021

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