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OptiMATE 6 12V/24V - 12V 6A / 24V 3A, Model TM381, Gold Series High Performance Battery Charger & Maintainer for Deep Cycle Batteries

SKU TM-381
by TecMate
Original price $153.85 - Original price $153.85
Original price
$153.85 - $153.85
Current price $153.85
in stock

With OptiMATE 6 12V/24V, you can expect efficient and reliable charging performance for your deep cycle batteries. This high-performance battery charger and maintainer is designed to charge and maintain both 12V and 24V batteries, providing up to 6A and 3A charging currents, respectively.

The advanced charging algorithm of this charger ensures that your battery is charged safely and efficiently, extending the lifespan of your battery and keeping it in top condition. Additionally, it comes with a unique desulphation feature that removes sulphur buildup from your battery, ensuring maximum battery performance.

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Unique FeaturesDesigned for sensitive electronics: The SAVE program has been designed for SAFE fully automatic low volt start (from 0.5 Volts) and PULSE recovery of deep discharged batteries connected to very sensitive electronics e.g. light aircraft, industrial equipment.
IDeal ForAGM, GEL, STD, DEEP CYCLE & Ca-Ca 12V (batteries from 6 – 240Ah) | 24V (batteries from 3 – 120Ah).
Charging Amps6A (Ampmatic current) @ 12V / 3A (Ampmatic current) @ 24V
Charging Volts

12V range: 0.5V – 14.4V / 14.7V; 24V range: 18V (0.5V*) – 28.8V / 29.4V

*Voltage safety check. Will not charge if battery voltage does not match selected voltage. User must confirm it is a low volt 24V battery > press selection button for 3 seconds to confirm > then lowest charge voltage for 24V is reduced to 0.5V.

OperationSelectable, 4 charge programs.


Warranty3-year limited replacement warranty.
UseIndoor / Outdoor  (lowest temperature: -4°F / -20°C).
InputGlobal (100-240V 50-60Hz), high efficiency (CEC listed).
StyleWeatherproof case with wall mounts, with 6ft / 180cm AC supply lead and 6ft / 180cm charge lead ending in SAE connector.
SaveLow Volt Start of 0.5V + 1-step desulphation recovery.
SafeNo 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.
IncludedWeatherproof battery lead & battery clip set.


How do I select the correct voltage program?Disconnect the charger from the battery
Place and hold finger on Select-TOUCH sensor. The selected voltage LED brightens to confirm touch.
After 3 seconds the voltage selection changes, then SAVE (#3), CHARGE (#4) and TEST (#6,7, 8) LEDs flash twice to confirm selection is in memory.
The selection remains even if AC power is lost.
My charger is connected to my battery. When pushing the button to change the voltage program, nothing happens. WHy?Disconnect the charger from the battery first, before making the selection with the touch button.
Can I use the Optimate 6 on deep cycle batteries?OptiMate 6 is the best charger for starter and deep cycle batteries.
What type and size batteries does Optimate 6 12V/24V charge?STD, AGM and GEL 12V lead-acid batteries used for engine start & deep cycle applications. (Link: Learn here about batteries, this will be at
For 12V batteries : Overnight charge (12h) : max battery capacity 50Ah. Max recommended size (24h) : 100 Ah. For 24V batteries : Overnight charge (12h) : max battery capacity 30Ah. Max recommended size (24h) : 60 Ah
How fast does optimate 6 recharge batteries?The time required for the OptiMate 6 to complete
the charge of a 50Ah battery should take no more than about 10 hours. Deep-discharged batteries may take significantly longer.


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