The Breakroom > The Water Cooler

Routine Battery Charging.

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kayzed1:
Between the lad and myself we have around 8 of these modern fit and forget type chargers, screwed to the walls in the shed and garage where ever a bike may stand still long enough :zap:  ( the lad also has a few bikes..)

awemawson:
Quite miraculously the battery from my Landrover that started this thread seems to have recovered having been on charge for 48 hours. My ‘cold cranking amps’ measuring device is giving me a reading of over 900 amps and is rated at 860. So it will be retained as a spare.

The battery in my ‘road compressor’ was also dead as a dodo and would take no charge at 12 volts. I put it on my 12/24 volt starter / charger at 24 volts and after a few minutes it started to register a bit of current passing. When it got up to 20 amps I reverted to 12 volts and left it for 24 hours. It has recovered to the extent that it will start the compressor, and is showing 700 cold cranking amps. It is also rated at 860.

chipenter:
I fit a small solar panel on top of the dash , since lock down only going shopping is using more to start the car than charging the battery , plus the car has a high parasitic drain because of the remote start and radio locking , had one battery fail had to go back to Toyota to reprogram every thing .

naffsharpe (Nathan):
O/K , This is not automotive related directly but it is my use of vehicle batteries.
I have three 12v car batteries which I would normally use through an inverter to power my (wet system) heating pump when we have the inevitable winter power outages here in North Wales. Last year we had nothing worse than overnight outages for a few hours so the batteries where not used. I now come to charge them for this year and find less than 2Volt/cell so my "intelligent" charger simply does not want to see them.
Should I use starter/jump cables to connect them in turn to my (engine running) car battery to try and bring above 2volts/cell and then onto "intelligent charger) or will this damage my good car battery?
I know that they are not the correct battery to use for my purpose but they are what I have and they are used for such short periods of time that a dedicated deep cycle/leisure battery is too costly.
Nathan.

awemawson:
There is a lot to be said for having an old fashioned transformer / rectifier style battery charger tucked away for these occasions.

Personally I’d briefly connect them in parallel with my tractor battery, but your car probably has more modern battery and electrics than my 1970’s tractor !

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