EarthX OptiMate 9.5 amp Lithium Battery Charger / Maintainer / Power Supply - Model TM-275 with BMS reset


  • Brand: EarthX
  • Product Code: TM-275
  • Availability: 2-3 Days
  • Stock Quantity: 0

The ultimate professional battery charger for 12.8V/16V Lithium batteries

This Optimate Lithium charger will quickly charge your battery,  maintain it at the optimal voltage so it is ready to go when you are,  but also has a very cool feature of being a power source of 8 continuous amps! For example, you can use it as power supply while programming your aircraft EFIS, or supply power to your Vehicle while retuning it.


Special features:

* TUNE mode delivers stable power for vehicle system reprogramming, show room vehicle demo or retaining memorized settings when battery cables are disconnected to fit powered accessories or replace the battery.

* BMS reset, pushbutton activated – for batteries with resettable low voltage / deep discharge protection. 

Battery SAVE mode with BMS reset : 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.

* safeTº : Automatic charge rate adjustment to ambient temperature sensed at the charger.  Reduced charging below freezing, no charging if temperature is below -20ºC/-4ºF (can damage lithium batteries).

* Ampmatic : Microprocessor adjusts current to ideal LiFePO4 charge curve to match battery size / conditionfor fastest and most complete charge.


CHARGING AMPS : 9.5A (AmpMatic)

USE : Indoor / Outdoor  (lowest temperature: -4°F / -20°C).

SAVE : Low Volt Start of 0.5V + 3-step low volt SAVE and TEST

IDEAL FOR : LiFePO4 (LFP) 4 series batteries from 2 – 120Ah.

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

STYLE : Weatherproof case with wall mountswith 5ft / 152cm AC supply lead and 6ft / 180cm charge lead ending in SAE connector.

INCLUDED :  Weatherproof battery lead & standard battery clip set included.


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. 3-year limited replacement warranty.


To reset an EarthX battery that is in the over discharge protection mode, connect alligator clips FIRST, and then plug unit into the wall. You will see the lights go to the save mode.

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Tags: EarthX, OptiMate, 9.5, amp, Lithium, Battery, Charger, Maintainer, Power, Supply, TM-275, BMS, reset