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CopilotCompanio's avatar
CopilotCompanio
Explorer
Dec 15, 2017

Quick Vote: Battery Reservoir Cover Caps -- On or Off?

Placed my 12 volt battery on a trickle charger in the garage today. Friend insisted the caps that cover the water reserviors should be opened to avoid a build up of gases that would lead to an explos...
pianotuna's avatar
pianotuna
Nomad III
Dec 17, 2017
Hi,

The electrolyte does not boil. It gasses from electrolysis. Voltage determines when that happens. The lower the ambient temperature the higher the gassing voltage.

nineoaks2004 wrote:
Leave them on.. Otherwise you could get contaminants etc. in the cells, the caps are vented and a trickle charge will not cause the acid to get hot enough to boil out anyway.

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