Minimum Size battery for E/Motor

[pontoonman]

Used amps are measured by TIME as long as the amps remain constant. For example a 33 ah battery can supply 3.3amps for 10 hours. So if you have used 3.3 amp for 2 hours, then you have used 6.6 ah of the 33 ah or about 20% of theoretical capacity. This assumes ideal conditions, warm, new battery, and low amp draw compared to capacity. You should not go below 80% of theoretical capacity in a lead deep cycle battery, as that shortens cycle life considerably. If your troll motor draws 33 amps it should theoretically go for 1 hour, but will only go maybe 45 minutes because of the huge proportional draw according to Peukert equation.

Pon


[quote idahoron]TD, How are you measuring amps used? I have several testers at home and at work. The amp testers I have at work will only tell you the amp draw. How do you measure the used amps? Ron[/quote]
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