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| Lead Acid battery trickle charger pumping out 15.8 volts |
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| Dabbo56:
Just bought an Energizer battery trickle/maintenance/conditioner for old-fashioned vented 12V lead acid battery. The battery is in reasonable condition and recently charged. My DMM says 15.8 volts, and I’m a bit alarmed. I was expecting a max voltage of 13.8 to as much as 14.4 volts. Should I be concerned? |
| tunk:
Is it 15.8V when connected to the battery, or when nothing is connected? If it's the latter and it's an old type transformer-based charger, then it may be ok, as the voltage will drop with a load. |
| Dabbo56:
It’s 15.8 v across battery terminals |
| bdunham7:
What model of charger is it? Do you have a manual? It is possible this is some initialization, test or equalization cycle, but if that is the continuous voltage across a good battery then it is cooking it, which is all bad. How big is the battery? Do you have a way of accurately measuring current? |
| AVGresponding:
Also worth asking if the DMM is reading correctly... |
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