Is there any way to recharge dry cell ?

Is there any way to recharge dry cell (cells which contain aluminium chloride, manganese dioxide and coke powder) ?

my_books said:

Is there any way to recharge dry cell (cells which contain aluminium chloride, manganese dioxide and coke powder) ?

Click to expand...

you mean 'standard' akaline cell (with kalium hydoxide as electrolyte) and old dry batterie as leclanche-type (amonium chloride and 'motor'/heavy duty batteries with zink-chloride as electrolyte)


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biggest disadantages for this type of batterys is maganese-dioxide have two stage of reduction - one easly going back with recharge, secondary stage not going back with recharge. In discharge moment make both of type of reduction and quote between is very depend of current strength and discharge deep.

for few years ago battery companys manufacture rechargeable akaline batterys with lower amount of zinc (for lower reduction deep of maganese) compare to normaly alkaline batterys and make charger for this type of batterys.

In practice you can calculate very few discharge/charge cycle with usable capacity and current strengt. If very low discharge level (<20%) you can make 20-50 cycle, but deep cycle 60-80% very few cycle (<5) and capacity decrase very fast and internal resistance rise quickly, typical half capacity of cycle before every cycle.

Nowdays NiMh batterys is unbeatable both in Ah-capacity, current capacity and cycle numbers, only disadvantages is high self discharge and lower voltage compare to alkaline-batterys and wrong designed equipment cannot handle this correctly, also in theory shall be handled correctly on near empty batterys as 0.9 Volt/cell (you can draw very much current from NiMh and voltage still higher than 1 Volt/cell, but easly going lower than 1.2 Volt with low current.).

Equipment by software going down with 1.1 Volt/cell is truble to work with NiMh/NiCd-batterys (also draw out full capacity from alkaline) and is IMHO wrong designed equipment and if possible avoid to buy - is very pity is only value in firmware table decise if equipment working with NiMh-batterys or not - rest of equipments hardware can in most case handle voltage below 1 Volt/cell without problem...

It's dangerous, don't try it, the dry cell can explode.

best regards

my_books said:

Is there any way to recharge dry cell (cells which contain aluminium chloride, manganese dioxide and coke powder) ?

Click to expand...