On 9 Apr, 12:25, "Michael A. Terrell"
wrote:
Captain Midnight wrote:

Motorcycle batteries are rated in Amp/HRS. A fully discharged 14A/H battery
will take 14 hours to charge at one amp.

No, a 14 Amp hour rated battery will deliver 1 amp for 14 hours, to
the rated discharge voltage.

Ah rating is only correct for a 20hr discharge. Faster discharge will
give lower than proportional capacity.

It will take more than 14 hours to
recharge, because some of the current becomes head, instead of stored
energy.

Charge time depends entirely on charge rate.


Starter motor current is ~50amp.

For a motorcycle? Some cars don't use that much current to turn the
engine over.

Fiat 500? Trabant?


NT