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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Dave Willis on March 06, 2014, 05:43:48 pm

Title: Healthy battery?
Post by: Dave Willis on March 06, 2014, 05:43:48 pm

What voltage should a healthy battery put out?

Title: Re: Healthy battery?
Post by: David lingard on March 06, 2014, 05:50:16 pm

This may help:

(http://modernsurvivalblog.com/wp-content/uploads/2013/06/battery-state-of-charge.jpg)

My batteries 110ah and 70ah are at 100% at 12.7 and 13.8 (weirdly) respectively

Title: Re: Healthy battery?
Post by: SeanK on March 06, 2014, 06:13:47 pm

Always check you battery level about 8 hours or more after charging as this will give
you a true reading.
A 12volt battery in perfect condition will read 12.8 when fully charged.
If they are reading 12.2 after charging then its time to replace.

Title: Re: Healthy battery?
Post by: Dave Willis on March 06, 2014, 06:14:53 pm

Interesting, my twin van batteries are eight years old (Hiace) one has a live feed for the pump that's been running every day for at least two years probably more. They both read 12.8v so I guess they are fine.  :o