Conrad Course material 10127 14 years and over 10127 Manual De Usuario

Test setup: Lithium rechargeable battery, alligator cable, rechargeable battery cell 

(deep discharged)
Rechargeable batteries that have been stored unused for a long time or connected 

to a permanent current consumer (e.g. an electrical watch) often collapse. This 

affects NiCd- as well as NiMh-rechargeable battery cells that then have an opera-

ting voltage that his so low that they are not recognised by automatic rechargeable 

battery chargers nor rechargeable.
This can be remedied by short, strong current impulses at a higher voltage, e.g. 

from a lithium or 12-V car battery.

 
Fig. 065: Use with lithium rechargeable battery and alligator cable