Ionic Lithium 36V 75AH Deep Cycle Battery

The Ionic Lithium 36V 75Ah LiFePO4 battery delivers 2,880Wh of energy in a single 45.2-pound package. Built for 36V trolling motors and marine systems that demand reliable deep-cycle power, this battery replaces traditional lead-acid setups with zero maintenance and a cycle life engineered for a decade of real-world use.

SPECIFICATIONS

WARRANTY
11-Year Warranty

WEIGHT
45.2 lbs (20.5 kg)

SIZE
13.2 × 6.9 × 9.6 inches (334 × 176 × 245 mm)

STORAGE CAPACITY
75Ah (2,880Wh total energy) with 99% usable depth of discharge. LiFePO4 chemistry delivers a flat voltage curve, meaning usable capacity stays consistent until the battery nears empty, unlike sealed lead-acid batteries that lose voltage and performance as they discharge.

VOLTAGE
36V nominal
Recommended charge voltage: 42.4V, 43.6V
BMS charge voltage cut-off: 45.6V
Recommended low voltage cut-off: 33V
BMS discharge voltage cut-off: 30V

ENERGY
2,880Wh

TERMINALS
3/8-UNC (installs in any direction)

LIFECYCLES (BATTERY LIFESPAN)
3,000+ cycles

OPERATING TEMPERATURE
Discharge: -4°F to 140°F (-20°C to 60°C)
Charging: 32°F to 113°F (0°C to 45°C)
High temperature cut-off: 149°F (65°C)
Battery will not charge if temperature is outside safe range

DISCHARGE
Maximum continuous discharge current: 80A @ 25°C (up to 120A @ 25°C)
Peak discharge current: 350A (60 seconds)
BMS discharge current cut-off: 650A at 30ms

CHARGE
Recommended charge current: 30A @ 25°C
Maximum charge current: 80A @ 25°C
Compatible with solar chargers and smart lead-acid chargers that reach 42.4V or higher
Chargers at or below 40.8V will only charge the battery to approximately 50% capacity

INCLUDES ACTIVE BMS PROTECTION
Microprocessor-controlled Battery Management System monitors voltage, current, and temperature during charging and discharging. Protects against overcharging, over-discharge, extreme temperatures, short circuits (protection response: 200, 600 µs), and excessive discharge current. Prevents charging if conditions are unsafe.

BLUETOOTH CAPABLE
Yes. Monitor power, temperature, voltage, battery health status, remaining charge time, and current draw in real time using the Ionic Blue Batteries app (iPhone and Android). Maximum modules in series: 4. Can be charged in parallel for unlimited range.

Experience the Ionic Lithium Advantage

The Ionic 36V 75Ah packs 2,880Wh into an IP65-rated ABS enclosure that weighs half what a comparable lead-acid battery weighs and lasts ten years with proper use. Less than 3% monthly self-discharge means the battery is ready when you need it.