Custom Drone Battery Pack 51.8V 27000mAh 5C LiPo 14S1P UAV Model EP9787187-27000mAh-5C-51.8V

The OID 51.8V 27Ah LiPo battery pack is assembled by Jianheng (Shenzhen Jianheng Technology Co. Ltd.) for drone and UAV power systems that need a high-rate 14S1P lithium polymer pack. It delivers 27000mAh nominal capacity at 0.5C discharge, with a 26000mAh (26000mah) minimum capacity, and a 51.8V nominal voltage. The pack supports 5C continuous discharge for ≤30 seconds and 10C pulse discharge for ≤3 seconds, while 2C super-fast charging helps reduce turnaround time. Energy density is ≥255Wh/Kg by weight and ≥54Wh/L by volume.

• Drone and UAV power: 27000mAh nominal capacity with 26000mAh minimum capacity and 51.8V nominal voltage for sustained high-power operation.
• High-rate output: 5C continuous discharge for ≤30 seconds and 10C pulse discharge for ≤3 seconds suit high-current drone and UAV loads.
• Fast charging options: Standard charge 0.5C CC/CV to 58.8V with ≤0.05C cut-off; fast charge 1C CC/CV to 58.8V with ≤0.05C cut-off; super-fast charge 2C CC/CV to 58.8V with ≤0.05C cut-off.
• Energy density: ≥255Wh/Kg weight energy density and ≥54Wh/L volume energy density help manage pack weight and space.
• Cycle life: Designed for ≥300 cycles at 0.5C charge/discharge with capacity retention ≥80%.
• Pack integration: 14S1P configuration with MOLEX 16-pin balance connector and AS150U-F power connector.
• Temperature range: Charge from 0℃ to 45℃ and discharge from -20℃ to 60℃.

• Model: EP9787187-27000mAh-5C-51.8V
• Nominal capacity: 27000mAh (0.5C discharge) with 26000mAh minimum
• Nominal voltage: 51.8V
• Configuration: 14S1P
• Full charge voltage: 58.8V
• Cut-off voltage: 49.2V
• Standard discharge: 0.5C (13.5A)
• Continuous rate discharge: 5C (≤30 seconds)
• Pulse discharge: 10C (≤3 seconds)
• AC internal impedance: ≤14.0mΩ
• Dimensions (H x W x L): 141.5±4.0mm x 89.0±1.0mm x 205.0±2.0mm
• Weight: ~5420g
• Weight energy density: ≥255Wh/Kg
• Volume energy density: ≥54Wh/L
• Operating temperature (charge): 0℃ to 45℃
• Operating temperature (discharge): -20℃ to 60℃
• Shipping voltage: 49.2V - 50.4V (40%-50% SOC)

• Discharge rate: ≥98% capacity at 0.5C & 1C, ≥90% at 3C.
• Temperature performance: ≥90% capacity at 40℃, ≥85% at 0℃, and ≥70% at -10℃.
• Cycle life: ≥300 cycles (0.5C charge/discharge) with capacity retention ≥80%.
• Charge retention: ≥85% capacity after 28 days of storage at 25±3℃.
• High temperature performance: ≥98% capacity after 4 hours at 55±2℃.

Jianheng (Shenzhen Jianheng Technology Co. Ltd.) provides lithium polymer battery packs for drone and UAV projects. For technical support, sample evaluation, or custom drone battery pack inquiries, please contact us.

Our LiPo battery packs undergo rigorous safety testing, including vibration, drop, and short-circuit tests, to ensure compliance with international standards. The built-in protection circuit and high-quality connectors (MOLEX 16-pin and AS150U-F) provide reliable performance and prevent damage from overcharge, over-discharge, and short circuits.

• Vibration Test: No fire, explosion, or leakage (10Hz~55Hz, 1.6mm amplitude).
• Drop Test: No fire, explosion, or leakage (1.2m drop height, 3 times).