52v 21ah Jumbo Shark Pack (Samsung Cells)
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Product Description
Product Description:
This high-performance 52 V 21 Ah (14 S × 6 P) lithium-ion battery pack is built with genuine Samsung 35E cells and a robust 50 A BMS for high-power e-bike and EV applications.
With IPX5 water resistance, a ship-style switch, LED charge indicator, and Reention mini 3-pin DC charge port, it’s designed for durability and reliability in demanding use.
Dimensions: L 368*W 90*H 141mm
14.5*3.6*4.4 inches
| Parameter | Specification |
|---|---|
| Model | FP5221R0 (AXX00750006 – A0) |
| Watt Hours | 1092 Watt Hours |
| Nominal Capacity | 21 Ah (min 20.1 Ah) |
| Cell Type | Samsung 35E 18650 – 3.6 V 3500 mAh |
| Configuration | 14 S × 6 P |
| Energy | ≈ 1.09 kWh |
| Standard Charge | 58.8 V CC/CV @ 4 A (5 A max) |
| End-of-Charge Current | 800 MA |
| Max Continuous Discharge | 50 A |
| Peak Discharge (< 10 s) | 120 A |
| Cycle Life | ≥ 500 cycles (@ ≥ 70 % capacity) |
| BMS Protection | Over-charge / Over-discharge / Over-current / Short-circuit / Temperature |
| Output Connector | XT90 (UL3135 12 AWG lead 300 mm) |
| Charge Port | Reention Mini 3-Pin DC |
| Switch | Ship-style toggle power switch |
| Waterproof Rating | IPX5 |
| Shipment Voltage | 51.8 – 53.9 V |
| Weight | ≈ 5.6 kg ± 0.5 kg |
| Operating Temp. | Charge 0 – 45 °C / Discharge –10 – 40 °C |
| Storage Temp. | –5 – 35 °C (half-charged; recharge every 3 months) |
| Short-Circuit Delay | ≈ 250 µs |
Battery Cut out
Included in Package
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1 × 52 V 21 Ah Battery Pack (IPX5 sealed case)
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1 × 58.8 V 3 A Charger (US AC plug / Reention mini 3-pin DC output)
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1 × XT90 pigtail cable (110 mm lead length)
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Shock-absorption mount pads set
Safety & Handling
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Use only with 58.8 V Li-ion chargers (CC/CV).
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Do not short-circuit, reverse polarity, or disassemble.
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Avoid charging below 0 °C or discharging below –10 °C.
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Store at ~50 % charge if unused for 3 months or longer.
Charging Instructions
The charger’s indicator light will display red while the battery is charging. Once the battery is fully charged, the indicator will change to green.
How to prolong your lithium ion battery?
Recharge your batteries before they are completely dead.
After every 30 charges, allow your lithium based battery to completely discharge before recharging.
What about warranty?
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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