OptiMate PRO-4 Duo Battery Charger

The OptiMate PRO-4 Duo helps you charge, prepare, and test multiple 12V lead-acid and 12.8V LiFePO4 batteries at the same time. You work with four independent 5A channels that each run an automated diagnostic programme, allowing you to activate new batteries, recover deeply discharged ones, and complete routine charging with controlled voltage and current management.Discover the key features of this charger-tester and power supply:Four Independent 5A Charging Outlets: Each outlet uses a dedicated microprocessor with an 11-step charging and testing routine that automatically adjusts current from 0.4A to 5A through Ampmatic regulation, enabling you to match charge delivery to battery size and condition so you bring each battery to a stable and usable state.Three Selectable Charging Modes: You choose between a 12V lead-acid mode, a 12.8V LiFePO4 mode, or a timed 60-minute auto-detect mode, allowing the charger to follow the correct charging curve for the chosen chemistry so you maintain safe charging behaviour and achieve predictable results during everyday maintenance.Automatic Battery Activation Cycle: The programmed activation sequence applies controlled voltage steps from 0.5V to 22V for lead-acid and up to 14.4V for LiFePO4, helping you prepare new AGM, GEL, and LFP batteries for service while confirming that they accept charge correctly and reach an operational state.Smart Recovery Mode for Deep-Discharged Batteries: The recovery algorithm injects a low-voltage, low-current routine designed to bring severely discharged batteries back to the threshold required for normal charging, giving you a practical way of returning neglected batteries to functioning condition.Integrated Multi-Level Battery Testing: The charger measures charge acceptance, internal condition, and final voltage retention, displaying GOOD (80 100%), OK (60 80%), or BAD (below 60%) indications, helping you determine whether a battery is ready for installation or requires replacement.Push-Button LiFePO4 BMS Reset: The BMS reset function sends a targeted pulse that wakes LiFePO4 batteries shipped in sleep mode or temporarily protected by their internal circuitry, enabling you to start the charging process without external tools.Automatic Retest at End of Charge: Once the charge cycle finishes, the unit rechecks the battery under controlled load, allowing you to confirm that the battery holds its charge and is stable before you use it.Global 100 240V Input: The high-efficiency universal input with an AC Class 2 socket and ON/OFF switch supports international operation, helping you plug in and work in different environments without adaptors.Included Charging Accessories: The supplied O-43 180cm charge lead extender and O-14 fused battery clips give you flexibility when connecting to different battery terminals, helping you set up cleanly on the bench.IP40 Indoor Rating: The enclosure is designed for indoor workshop use, giving you reliable operation in controlled environments where multiple batteries are handled routinely.You use the OptiMate PRO-4 Duo to manage charging, recovery, and testing tasks across a varied range of lead-acid and LiFePO4 batteries, helping you keep equipment ready for regular use. Its independent channels and chemistry-specific modes support efficient workflow when you handle several batteries at once. Adding this unit to your bench setup gives you a practical and dependable tool for structured battery servicing, making it a smart choice for maintaining a consistent charging and diagnostic process.