Quote:
|
MetroMPG The voltage sags pretty low under even light-modest loads. I've read it's best to try to keep the batts above 5.75v (individually) under load, and definitely go no lower than 5.5v. I can't accelerate at "normal" traffic rates and keep the voltage above 5.75, even on a fresh charge.
|
Crud! I keep mixing this up. So, correction:
5.25v is the conservative lower limit of sag under load for a flooded golf cart type batt,
not 5.5v.
(Below 5.25v, you have no guarantee that an individual cell isn't approaching zero, and about to reverse polarity - pretty much wrecking the battery).
So trying to keep sag above 5.75v, while good for range and battery-friendly, isn't strictly necessary.
Which means that, when needed, I can accelerate more rapidly than I have been and not fear for the lives of the old floodies.
Also, using 5.25 as the lower limit effectively extends the car's range. Time for another range test!