The cost for a good battery will run close to $100.00
A lithium battery cr2032 battery does not really cost that much. You should be able to find these batteries in the store for $3 or $4 tops.
A quick survey shows that it will cost you at least $1000, probably more.
normally you cannot retrofit one if you found someone it would cost a few thousand dollars normally you need to buy a minivan that is wheelchair accessable.
About 18.95$ can
50€
how much should a minivan battery cost to replace 2008 Chrysler Town and Country
Wheelchair price
There is a wide variety of pricing for a 12 volt battery. The overall wattage of the battery will determine overall cost. Typically they will cost anywhere from $100-$400 for a new battery.
The cost for a battery case can vary greatly, depending on the model of phone and manufacturer. The average cost for an Apple IPhone Battery case on Amazon is $35.
less then 10 euro
about 50-75