SaltiDawg wrote:
Muddydogs wrote:
Why do I need 2 places after the decimal? Does it really matter if I'm at 12.4 or 12.3 due to rounding? If my meter reads 12.2 or 12.3 it's definitely time to get some charge going and if it reads 12.7 but is really 12.6 does it really matter?
What do we think the accuracy of the meter is on, say, a Zero to Twenty Volts scale?
Well considering the meter reads the same as my solar controller which is checked often and the few times I compared the meter and controller to a volt meter at the batteries and found they all read within .1 volts I would say fairly accurate.
Considering I'm looking for accuracy from 12.0 to 12.7 volts why worry about accuracy from 0 to 20 volts? Without testing I couldn't say how accurate it is through the scale but I do know that the RV one shows what the converter should be putting into the battery as it cycles through its stages and my ATV one shows the alternator is putting out the volts it should so up to 14.6 volts they seem to read well. On the low end I would have no idea since I haven't had a battery below 12.2 volts since there install.
