[Bill-n-Brillo]

Alan, if you're not an "expert", at least you're a "wizard"!

I certainly respect your level of knowledge on electric carts.

Bill

[jimbo2012]

Originally Posted by ajbrown

IMO it is worth knowing how many miles your cart goes to discharge the pack to 48.4 volts. Measure the voltage while cart at rest. It will recover about 0.3 volts after 20 minutes; this rested voltage is your state of charge and a decent guideline. At 48.4 you now know how far your cart can go without discharging too deeply.

Spot on....but you can bring the pack to 80% discharge if needed or 47 volts if I read that correctly, not sure how many more miles that would be.

The other fact you bring up is the recovery resting, too many say they go so miles on elec, but it's taken out context often, everyone does stop & go with rests in-between so the milage is higher.

But a safe bet is probably 50 miles do you agree?

[ajbrown]

Originally Posted by jimbo2012

Spot on....but you can bring the pack to 80% discharge if needed or 47 volts if I read that correctly, not sure how many more miles that would be.

I will not do that to my new pack, but I did recently take my 2+ year old pack of 8 - 6volt batteries to a deeper discharge. In summary Caly and I went 63 miles with an ending voltage of 47.6.

Details in these two posts:

Test Summary
Test graphed

[jimbo2012]

Trojan says you can safely go to 80% discharge.