best way to test house batteries ?

MountainAir05 wrote:

opnspaces wrote:

MountainAir05 wrote:
I test with them separate. Then check each with the hydrometer after they set for an hour or so. I also check each cell with the volt meter after the hydrometer test.

How do you check an individual cell with a volt meter?

Saves writing and it has a video. Wash off the lead when you are finish.

https://www.youtube.com/watch?v=_8qgZoovWHI&ab_channel=BatteryChem%E2%84%A2LeadAcidBatteryDesulfatorandReconditioner

This is how I check mine also except I leave the positive probe on the pos battery terminal and dip the negative probe into each cell and subtract the difference. When ever I see a low cell I run an Equalization on the battery and also a desulphation cycle also. My batteries are not on a slide and it is difficult to get a hydrometer in there to check. I have two hydrometers and have not had accurate readings, the voltmeter is good enough for what I need.