🔋 High capacity and reliable power supply
XTAR INR 21700-50E 5000mAh lithium-ion battery is an efficient energy source designed for LED flashlights, electronic devices, and equipment powered by 21700 cells. With a capacity of 5000 mAh, it provides a long runtime, and the built-in PCM protection enhances user safety.
Key advantages
✅ Capacity of 5000 mAh ensuring long runtime
✅ High-quality INR21700-50E cell with low internal resistance
✅ Maximum continuous discharge current up to 10A
✅ Built-in PCM protection
✅ Overcharge, over-discharge and short circuit protection
✅ Positive terminal Button Top (convex plus)
✅ Ideal for LED flashlights and devices powered by 21700 cells
✅ Rechargeable – over 500 cycles
✅ Eco-friendly alternative to disposable batteries


⚡ Safe operation every day
The battery is equipped with an electronic protection circuit PCM, which protects the cell and the powered device from:
- overcharging,
- excessive discharging,
- short circuit,
- overloading.
Thanks to this, the battery is safer for everyday use and maintains high longevity over many charging cycles.
🔦 Ideal for flashlights and 21700 devices
The cell has been designed with devices requiring stable power supply and high capacity in mind. It will work perfectly in:
- LED flashlights,
- tactical flashlights,
- bicycle lighting,
- electronic devices powered by 21700 cells.
Low internal resistance ensures stable energy delivery and high efficiency of operation.
⚠️ Attention
The battery has a protruding positive terminal (Button Top) and built-in PCM protection, making it longer than standard, unprotected 21700 cells. Before purchasing, make sure that the battery dimensions meet the requirements of your device.
📈 Technical Data
Manufacturer: XTAR
Model: INR 21700-50E Protected
Cell type: Li-Ion (lithium-ion)
Size: 21700
Cell: INR21700-50E
Capacity: 5000 mAh
Nominal voltage: 3.6 V
Maximum charging voltage: 4.2 V
Maximum continuous discharge current: 10 A
Protection: PCM (overcharge, over-discharge, short circuit)
Positive terminal type: Button Top (raised positive)
Internal resistance: low
Lifespan: over 500 charge cycles
Dimensions: 21.5 (±0.3 mm) × 74.5 mm (±0.5 mm)
Approximate weight: about 73 g





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Polska
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