User manual

Note on discharge

The nal discharge voltage must never drop below 2.5 V. Otherwise, the

rechargeable battery cell is destroyed. The rechargeable battery

management usually integrated in the rechargeable battery therefore usually

switches off at 3.0 V.

It is recommended to „gently“ (dis-)charge lithium rechargeable batteries

(only to approx. 30 %), since this will extend their service lives.

If you want to build your own charger, precise control of the nal charging voltage

is mandatory. A stabilised voltage supply is usually built with xed voltage cont-

rollers. At the same time, the market offers complete charging ICs for comfortable

and safety-technically good charging of the lithium rechargeable batteries.

Important!

For the following charging experiments, it is urgently recommended to use

only lithium rechargeable batteries with integrated protection electronics.

These are removable rechargeable batteries as they are used in mobile

phones, cameras, etc.

Fig. 038: Suitable rechargeable battery with integrated safety/protection electronics