Genuine Samsung 40T 21700 Li-ion cell - battery cell orders will include a free case/s
100% genuine, UK seller/ UK stock. 24 hour shipping max to the UK.
Please ensure this is the correct size you want and not an 18650 instead.
- Brand: Samsung SDI
- Model: 40T
- Size: 21700
- Chemistry: IMR
- Nominal Capacity: 4000mAh
- Nominal Voltage: 3.6V
- Discharge: 30A Max Continuous
- Positive: Flat
- Protected: NO, UNPROTECTED
- Rechargeable: Yes
- Dimensions: 21mm x 70mm
Safe use, storage and disposal
Lithium-ion (Li-ion/Liion) batteries/cells can be dangerous when mistreated.
- Never carry loose cells – they should be suitably cased at all times when not in use.
- Do not short batteries with metallic objects such as keys or loose change.
- Always use a battery charger designed for Lithium-Ion cells.
- Never leave a battery charger unattended.
- Never completely discharge batteries. (The cut off for most cells is 2.8v or 2.5v)
- Outer wraps and insulator rings should be checked for damage regularly. Replace worn or damaged wraps before continuing use.
- Do not expose to extremes of heat or cold, or sudden fluctuations between the two.
- Always dispose of end of life cells at your local WEEE recycling centre.