High-capacity batteries such as the P1840C are particularly suitable for applications where weight and duration of use play a decisive role, e.g. hiking, geocaching, diving, camping, wildlife cameras, etc: Hiking, geocaching, diving, camping, wildlife cameras, etc.

Keeppower 18650 lithium-ion battery *PCB/BMS with 4000mAh capacity

Thanks to high quality standards and high-quality components, Keeppower rechargeable batteries have enjoyed great popularity for a long time, and not just among torch enthusiasts.
Equipped with Seiko (Made in Japan). Protection/PCB with short-circuit, overcharge and deep discharge protection.

Please note the dimensions of the cell before purchasing! Due to the built-in electronics, the cell is not suitable for every application!
Height and diameter are larger than a standard 18650 cell without *PCB.

Technical data for the Keeppower 18650 lithium-ion P1840C battery.

Data sheets for the Keeppower 18650 battery P1840C:

Scope of delivery:
1 piece Keeppower 18650 - P1840C Keeppower 18650-4000mAh
When ordering two batteries, a battery protection box is supplied free of charge.

Safety note:
Please note that removing or damaging the protective electronics (PCB) can lead to a short circuit, fire or explosion.

Further properties:
Lithium-ion batteries are thermally stable and are not subject to a memory effect.
They work on the basis of lithium and are characterised by a high energy density.

*A PCB (Printed Circuit Board) is the printed circuit board on which the circuit is located.
*A battery management system(BMS) or simply battery management is a measure, but usually an electronic circuit, which is used to monitor, control and protect batteries.

Notes:

Charging lithium-ion batteries requires a special charger that charges the batteries according to a special charging procedure. (CCCV = constant current, constant voltage.) The batteries must not be charged above a voltage of 4.2 volts, otherwise there is a risk of fire and explosion. It is advantageous to charge the batteries only up to approx. 4.1 volts, as this significantly increases the service life or number of charging cycles (possibly up to double). Only lithium-ion chargers may be used for charging. However, cheap chargers sometimes have the disadvantage that they do not switch off safely at the end of the charging process, but continue to charge the batteries with a low charging current, which can be dangerous.

Furthermore, rechargeable batteries and batteries do not belong in household waste! Please dispose of them as prescribed by law in the municipal collection centres or in the [usually green] containers provided for this purpose by retailers.