Can I charge a lawnmower battery with a car charger ?

[Aaron2010star]

Lawnmower battery flat, can I use a car battery charger to charge it?

 

 

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[openspaceman]

Lawnmower battery flat, can I use a car battery charger to charge it?

 

 

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How many cells has it got, 3 for 6V 6 for 12V? You'll soon fry a 6V battery with a 12V charger.

[Aaron2010star]

How many cells has it got, 3 for 6V 6 for 12V? You'll soon fry a 6V battery with a 12V charger.

 

 

 

It says 12volts and reads only 2 volts at the moment and my car charger is a diesel charger up to 1900cc got it on slow charge

 

 

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[Mick Dempsey]

It'll be fine. I've done my mower battery with my car charger.

 

12v is 12v

[adw]

Lead acid battery no problem, gel battery has a different charger.

[openspaceman]

It says 12volts and reads only 2 volts at the moment and my car charger is a diesel charger up to 1900cc got it on slow charge

 

 

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Essentially if you let a 12V battery fall to below 11V you compromise its life greatly. Stick it on the charger and wait.

[eggsarascal]

I'd be surprised if you could bring a 12v battery that is reading 2v back to life.

[Gary24]

Mine wouldn,t start yesterday so i jump started her off my Shogun that got her going:thumbup:

[Aaron2010star]

Mine wouldn,t start yesterday so i jump started her off my Shogun that got her going:thumbup:

 

 

 

[emoji108]

 

 

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[NFG]

I'd be surprised if you could bring a 12v battery that is reading 2v back to life.

 

Me too, discharge below 10.5 Volts for lead acid battery is terminal

 

Those CTek chargers are pretty good & help prevent sulphation

 

I would charge it at a higher rate - more than trickle - to try and help reverse the effects of deep discharge but would be surprised if it does hold charge. Keep a check on the water level and loosen the cell tops to allow gassing.

 

N

Edited March 12, 2017 by NFG