Optimate TM-391 6amp Battery Charger/Maintainer (12-13.2V Batteries)

With 5 Amps of charge current available OptiMate lithium unique multi step ampmaticTM program recharges and balances cells within the battery quickly and efficiently.

OptiMate lithium’s maintenance program delivers current to the vehicle circuitry, protecting and keeping the battery at 100% charge.

• Ultimate LiFePO4 professional level battery charger. High efficiency diagnostic charger and tester for LiFePO4 / LFP batteries.
• Perfect for charging and seasonal maintenance of a 13.2V LiFePO4 / LFP battery sized from 2 to 100 Amp-hour.
• SAVE : Low Volt Start of 0.5V + 3-step low volt SAVE and TEST; CHARGING AMPS: 6A (AmpMatic).
• IDEAL FOR: LiFePO4 (LFP) 4 series batteries from 2 – 100Ah; INPUT: Global (100-240V 50-60Hz), high efficiency (CEC listed), fully sealed.
• USE: Indoor / Outdoor (lowest temperature: -40°F / -40°C); STYLE: Weatherproof case with wall mounts, with 6ft / 180cm AC supply lead and 6ft / 180cm charge lead ending in SAE connector; Weatherproof battery lead & standard battery clip set included.

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

STEPS: 10

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.

Technical Specifications

• Recommended for LiFePO4 batteries: up to 100Ah
• Programme control: ampmatic microprocessor
• Input current max: 0.55A at 230V
• Reverse drain current: less than 0.001A
• Output current (bulk charge): 0.4A – 6.0A
• Charge time limit: 24 hours (maintenance time: unlimited)
• Maintain/test cycles: 30 min/30 min (alternating hourly)
• Charge retention test: Range: 10.1 – 13.3. GOOD (green) = battery voltage > 13.3V
• Enclosure classification: IP54
• Mounting: east direct wall mounting
• Input & output cable lengths: 2m
• Operation temperature range: -40°C – +40°C
• Warranty: 3 years

Charging Versatility With EarthX Batteries

EarthX Batteries use an intelligent Battery Management System (BMS) to balance the batteries as they charge. This capability is a major benefit to users because a specialty charger isn’t required for your EarthX Batteries to perform.

The BMS uses a microprocessor that monitors the cells to keep them in an optimal state to insure performance and longevity. The system also protects the battery as it functions. With the BMS, charging practices are important but not critical to battery performance. The BMS handles many of the complexities of charging, so you don’t have to.

With the BMS ensuring balance, you can enjoy more flexibility in battery usage. Additionally, EarthX Batteries offer high discharge capacities and fast charging speeds.

Recommended Lithium Battery Chargers

As the owner of a lithium iron phosphate (LFP) battery from EarthX, you may want to invest in a dedicated charger directly from our site. We offer several chargers for EarthX Batteries. Products we carry include:

• Optimate TM-281 5 Amp Battery Charger/Maintainer/Power Supply (24-28V batteries) – EarthX Batteries: To charge 24- to 28-volt lithium batteries, use this charger. With a “tune” feature that is a power source with 4 continuous amps of energy while you program your electronic flight instrument system or retune your car.
• Optimate TM-391 6 Amp Battery Charger/Maintainer/Power Supply(12-13.2V Batteries) – EarthX Batteries: This charger provides 6 amps of charging energy, 5 amps continuous as a power supply or  can also be used as a maintainer to keep your battery ready when you are. It has a weatherproof case for indoor and outdoor use.
• Optimate TM-275 10 Amp Battery Charger/Maintainer/Power Supply (12-13.2V Batteries) – EarthX Batteries Optimate TM-275 10 Amp Battery Charger/Maintainer/Power Supply (12-13.2V Batteries): Charge your battery at 10 amps. Also, use it as a 8 amp power source to save your battery for applications like programming an aircraft, or leave it connected to keep you battery topped off and ready as a maintainer.

Best Lithium Battery Charging Practices

All batteries wear down over time and lose capacity and cranking abilities. Both scenarios mean the battery will be less powerful over time. To maintain battery performance and extend it’s life, follow these charging practices:

• Follow minimum voltage requirements and keep batteries charged at this value or higher.
• Use a plug-in charger over a jump start whenever possible.
• Avoid leaving your battery discharged for any period of time.

Buy An EarthX-Recommended Battery Charger

If you need a power source for your lithium batteries, EarthX has several charging options for 12- to 28-volt batteries.