SiO2 batteries - opinions?
I’m looking to replace my bank of 4 Trojan T-125’s this spring, and was researching various solutions. I was verging towards AGM (FullRiver DC215-12) 12v units to a total of roughly 600 ah (300 usable...
Forum Discussion
BFL13 wrote:
It doesn't matter if the pos and neg sides are unequal because it is a circuit.
Not true - assuming we're talking about the same thing.
Voltage drop through the wiring to/from EACH battery has to be the same during either charging or discharging of each battery in order for each battery to be treated identically, electrically, in any 12V multiple-battery paralled setup called "balanced".
Note "Method 3" in this link - that is the method to be used for three(3) 12V batteries if one wants to hook them up in parallel in a balanced way - so as to ensure absolute maximum life of the three(3) batteries: http://www.smartgauge.co.uk/batt_con.html
The link above is all about equal circuit voltage drops for each battery due to the current passing through the wiring resistance to/from each terminal of each battery. The entire contents of the link should be carefully read and understood before taking on the additional time, effort, and money to hook up 12V RV batteries in a completely balanced way.
Of course the approach shown in the link has to also be used when wiring up multiple two-battery 6V sets (to make 12 volts per set) into balanced 12V battery banks.
