Battery & Power

21700 Rechargeable Battery.

Two-way USB-C charging. High power and high performance.

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21700 rechargeable battery powering a phone
01

Specifications.

Technical details

Model
21700
Nominal capacity
5000 mAh
Nominal voltage
3.7 V
Discharge end voltage
2.5 V
Maximum continuous discharge current
30 A
Standard charging voltage
4.2 ± 0.03 V
Standard charging current
2500 mA
Transport voltage
3.6–3.9 V
Overcurrent protection
25.5–35 A
Operating temperature
−20 to 50 °C
Storage temperature
−20 to 50 °C; best at 21 ± 3 °C
Internal resistance
≤23 mΩ
Cycles
≥500
Protected
Yes
Positive terminal
Button top
Net weight
78 g
02

High power. High performance.

  • A maximum continuous discharge current of 30 A supports high-drain devices.
  • 5000 mAh capacity maximizes runtime.
  • 1000 charge cycles offer cost savings and reduce environmental impact.
  • A built-in explosion-proof valve enhances safety.
  • An integrated gold-plated protection circuit.
  • Global product liability insurance.
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