Maintenance-Free LiFePO₄ Lead-Acid Replacement Battery (Model JQ51231Q)

High-Voltage, High-Efficiency Output – Reliable Lithium Upgrade

The JQ51231Q is a maintenance-free lithium iron phosphate (LiFePO₄) replacement battery designed to upgrade high-voltage lead-acid systems in heavy-duty equipment. Equipped with J&Q ENERGY LiFePO₄ polymer cells, it delivers stable high-voltage output, far surpassing traditional lead-acid batteries.

Weighing only 11.8 kg, it combines portability with high performance, making it ideal for precision instruments, industrial control equipment, and outdoor high-voltage emergency systems. Its ultra-long 6000-cycle lifespan reduces maintenance and replacement costs, while direct replacement of lead-acid batteries without wiring modifications ensures a seamless and efficient upgrade.

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Core Technical Specifications

Parameter	Specification
Model	JQ51231Q
Rated Voltage	51.2V
Rated Capacity	31Ah
Rated Energy	1.587 kWh
Battery Type	Lithium Iron Phosphate Polymer Cell (3.2V/31Ah)
Overcharge Voltage	58.4V
Cut-off Voltage	40V
Continuous Charging Current	15A
Maximum Charging Current	30A
Continuous Discharge Current	30A
Maximum Discharge Current	60A
Charging Temperature	-20℃ ~ 45℃
Discharging Temperature	-40℃ ~ 65℃
Storage Temperature	-10℃ ~ 35℃
Product Weight	11.8 kg
Product Dimensions	333 × 176 × 221 mm
Package Dimensions	403 × 246 × 296 mm
Cycle Life	6000 cycles
Communication	Bluetooth
Warranty	3 years
Brand	J&Q ENERGY
Customization	Supported

Bluetooth Smart Control & Universal Compatibility

The JQ51231Q features built-in Bluetooth connectivity, allowing real-time monitoring of battery level and charge/discharge status via mobile devices. Maintenance is efficient even in heavy-duty operational scenarios.

Its standardized dimensions are fully compatible with traditional high-voltage lead-acid battery positions, while the ultra-wide operating temperature range (-40℃ to 65℃) ensures reliable performance in harsh conditions, including extreme cold or heat.

Backed by J&Q ENERGY brand quality, a 3-year warranty, and customization services, this maintenance-free LiFePO₄ battery precisely meets the needs of high-voltage, heavy-duty equipment for international wholesale customers. It is a preferred solution for lead-acid to lithium battery upgrades in industrial and high-voltage applications.