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

Lead batteries that have been used for an extended time form an insulation 

layer on the plate surface and thus become high-impedance and cannot be 

charged anymore. 
This can be remedied by alternating voltages being supplied to the 

rechargeable battery. Voltage applied with the „wrong“ polarity can help 

remove the inner insulation layers again.
There are rechargeable battery refreshers to prevent this. The rechargeable 

battery is continually „shot at“ by short impulses in the millisecond range. 

The energy for this is taken from the rechargeable battery and lower than the 

self-discharge that takes place anyway.

Test setup: Rechargeable battery stored for days and months
Rechargeable batteries for operation of electrical and electronic devices that 

are often also used as replacements for expensive disposable batteries are not 

very cheap. They should therefore work as long as possible. Depending on the 

technical procedure with which the rechargeable battery is charged, the possible 

charge and discharge amount (capacity) and specifically the service life (cycles) of 

the rechargeable battery vary.
There are now so many recommendations on rechargeable battery care that there 

is great confusion. How to treat which rechargeable battery type? It is important 

not to treat all rechargeable batteries the same way.
Rechargeable battery types as pre-set in the learning package are chemical ener-

gy accumulators. In rechargeable battery technology, there are different models 

that mainly differ by the chemical components and inner structure. This can be 

told by abbreviations such as NiZn, NiMh etc. These connections have additional 

special features. NiMh rechargeable batteries have a high, lithium rechargeable 

batteries an extremely low self-discharge.