Deka Intimidator Batteries?
I was going to purchase some Fullriver DC250-6 AGMs for my project but I've been told that every DC250-6 battery in the US was purchased for a large order being shipped overseas and it will be at leas...
Forum Discussion
pnichols wrote:
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Proper balancing has two elements: 1) Identical total cable loop length for each battery and the system load and (here's the subtle part) ... 2) identical cable lengths BETWEEN the positive and negative posts of every battery in the bank and it's neighboring battery(ies).
Requirement 2) is because the momentary intrinsic voltage differences between batteries (due to age differences and/or slight construction differences and/or slight chemistry differences) will cause small local current flow between a higher voltage battery and it's lower voltage neighbor as the two settle into a balance between them while supplying total current to a system's load or being charged. For continuing balance over time and at all times during charging or discharging into a load these small currents must flow through identical length cabling between the batteries regardless of whether the batteries that are settling into a balance between each other are side by side or are further apart in the battery bank.
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Thanks- that I understand now, but I will say that that looks subtle enough that I not sure it would make much difference in the real world, and it's a bit moot, as wiring 9 batteries like that would be impossible due to space limitations.
A lot of these battery conversations remind me of Apollo 13, when they were getting the very last watt-minute out of the batteries :)
