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The Samsung 50E is a premium 21700 lithium-ion battery built for long runtime, efficiency, and durability. With an impressive 5000mAh capacity and a 9.8A continuous discharge rating, this cell is the ideal choice for e-bikes, battery packs, and power tools. Its high energy density ensures longer use between charges, while its low self-discharge rate enhances efficiency.
Compared to standard 18650 cells, the Samsung 50E offers greater power storage and a higher energy-to-weight ratio, making it an excellent option for electric transport, off-grid solar energy storage, and custom battery packs. Built with Samsung SDI’s advanced lithium-ion technology, this battery delivers consistent voltage retention, superior performance, and reliable cycle life.
Check out the rest of our 18350/18500/18650/21700 Cells and all our Batteries Collection.
| Brand | Samsung SDI |
| Model | 50E (INR21700-50E) |
| Cell Size | 21700 |
| Nominal Capacity | 5000mAh |
| Minimum Capacity | 4900mAh |
| Continuous Discharge Rating | 9.8A |
| Nominal Voltage | 3.6V |
| Full Charge Voltage | 4.2V |
| Discharge Cutoff Voltage | 2.5V |
| Rechargeable | Yes |
| Protected | No (Unprotected – Requires external protection circuit) |
| Cycle Life | Approximately 500 cycles to 80% capacity |
| Diameter | 21.1 mm |
| Length | 70.7 mm |
| Weight | ~69 g |
Li-Po and Li-Ion batteries must be cared for properly when stored, and NEVER charged, balanced,
or discharged unattended.
ALWAYS be in the same room within line of sight of charging or discharging batteries.
NEVER charge or discharge batteries on a flammable surface.
Failure to follow these instructions may result in fire, personal injury, and/or property damage.
By purchasing this battery, you agree that Pyrodrone and the battery manufacturer are in no way responsible
for consumer battery charging and care, or any of the risks associated with Li-Pos or Li-Ions.
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