« Return to Thread: Range: 156Volts vs 312 volts

Re: Range: 156Volts vs 312 volts

by Peter VanDerWal :: Rate this Message:

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> T 145 6 volt battery 150 volt pack. qty 25 Peukert Exponent =
> 1.179  ( lower is better ) Amp Hr at 1/2 hr rate = 142 150
> volt * 142 amp hr = 21,300 watt hr 21,300 divide by 350 watt
> hr per mile = 60.8 mile range ( 100% DOD )

Well, I suppose that is true if you travel at 120 mph, since that's the
only way you can travel 60 miles while discharging the batteries in only
30 minutes (1/2 hr rate)

Plus, it's VERY important to note that the Peukert formula is just an
approximation of what to expect, it is NOT a perfect fit.
It is /somewhat/ accurate if you calculate the Peukert exponent with rates
that a similar to the rate you are trying to estimate.

I.e. if you use the 10 hr discharge rate and the 20 hr discharge rate to
calculate the Peukert exponent, and then try to use this to calculate the
1/2 hr discharge rate, the results will likely be very different from
reality.


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 « Return to Thread: Range: 156Volts vs 312 volts

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