Applications where the 18500 cell does not fit sufficiently because of the diameter, or where the 14500 allows larger batteries, the intermediate size 17500 is the optimal solution. Some applications in model making or in the cosmetics industry are already using these batteries as standard cells 

PCB / BMS equipped 17500 Li-Ion. Battery P1750C

Protection/PCB with short circuit, overcharge and deep discharge protection. Seiko (Made in Japan). Designed for torches, LEDs, model making, industry etc.

Safety instructions:

Please note that removing or damaging the protective electronics (PCB) may result in a short circuit, fire or explosion.

Further characteristics:

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

Scope of delivery:

1x Keeppower 17500 rechargeable battery
If you order two batteries, a battery box for 17500 batteries will be delivered free of charge.

Notes:

A special charger is required for charging lithium-ion batteries, which 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 the number of charging cycles (possibly up to double). Only lithium ion chargers may be used for charging. However, the 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 small 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 at the municipal collection points or in the [usually green] containers provided by retailers.