OptiMate DC-to-DC Battery Charger & Optimiser

OptiMate DC-to-DC Battery Charger & Optimiser

With the OptiMate DC-DC battery-to-battery charger, you can charge a 12V battery directly from another 12V battery, with no AC power source required.

Designed for use where mains power isn't available, it can recover, charge and maintain both lithium and lead-acid batteries using a larger source battery (ideally with at least 1.5 times the capacity). OptiMate's Source Battery Protection prevents excessive drain on the donor battery, ensuring a safe and reliable charging process.

The integrated BMS wake-up function can reactivate lithium batteries that have entered sleep mode or deep-discharge protection.

Intelligent battery detection automatically adjusts charging parameters to suit the connected battery type, helping to maximise performance and maintain long-term battery health.

Features:

• Compatible with all 12V starter batteries, including lead-acid (STD, AGM and GEL) and LiFePO4/LFP lithium batteries
• Safe for long-term connection with full electronic protection
• Maintains optimum charge for improved battery health
• Recovers batteries from voltages as low as 2V
• Checks battery state of health
• Prevents source battery deep discharge
• Energy-efficient design
• Less than 0.5W standby power consumption
• Efficient 24/7 battery maintenance
• IP54 weatherproof rating, suitable for use in temperatures down to -40°C
• 3-year limited replacement warranty

Construction:

• Durable weatherproof housing with integrated wall mounting points
• Supplied with a 180cm charging lead terminated with an SAE connector

Charging Performance:

• Delivers a constant 2A charging output
• Designed for 12V lead-acid batteries from 6Ah and 12.8V/13.2V LiFePO4 batteries from 2Ah
• Supports battery voltages from 2V to 14.4V
• Optimised charging process includes controlled charge, optimisation, testing, and long-term maintenance stages

Operation:

• Fully automatic operation with no manual intervention required
• Advanced 6-step charging cycle:
• Low voltage start / BMS reset
• Pulse recovery mode
• Controlled charging
• Charge optimisation
• Post-charge testing
• 24/7 maintenance mode

Usage:

• Ideal for charging and maintaining vehicle batteries where AC power is unavailable
• Suitable for long-term battery maintenance and storage applications

Power Input:

• Operates from a 12V to 16V power source
• Maximum input current of 2.7A
• Features source battery protection with low-voltage warning indication and automatic shutdown

Battery Recovery:

• Recovers deeply discharged batteries with low-voltage starting capability down to 2V
• Includes pulse recovery technology to help restore battery performance
• Resets LiFePO4 battery management systems (BMS) when required

Safety:

• Automatic protection against overcharging
• Safe for use with sensitive vehicle electronics
• Spark-free connection technology for safer operation
• Automatic shutdown in the event of a short circuit or battery disconnection
• Designed for continuous long-term connection without risk of battery damage

What's included?

• Fused battery clip set
• Standard battery clip set
• Weatherproof battery lead