Is it known what the amperage draw is, at cruising speed vs during moderate acceleration?
You may not require a huge charging current if the cruise power consumption is much lower than the acceleration consumption.
With a smaller charger, yes the batteries will discharge slightly while accelerating, but the batteries will then slowly recharge while at cruising speed.
Also, anytime you coast down a hill, or are braking, the output is basically zero watts so you get full current from the charger.
Why do you think you need 400 amps charging current at 64 volts, or 25600 watts?
The Comuta manual I found only talks about a 3.6 HP GE motor, and since 1 HP equals roughly 745 watts, the full motor output is apparently only about 2700 watts, about ten times less than your stated charger requirements.
But, the manual I found also only talks about 36v and 48v systems yet you apparently have 64v, so I have no idea.
You may not require a huge charging current if the cruise power consumption is much lower than the acceleration consumption.
With a smaller charger, yes the batteries will discharge slightly while accelerating, but the batteries will then slowly recharge while at cruising speed.
Also, anytime you coast down a hill, or are braking, the output is basically zero watts so you get full current from the charger.
Why do you think you need 400 amps charging current at 64 volts, or 25600 watts?
The Comuta manual I found only talks about a 3.6 HP GE motor, and since 1 HP equals roughly 745 watts, the full motor output is apparently only about 2700 watts, about ten times less than your stated charger requirements.
But, the manual I found also only talks about 36v and 48v systems yet you apparently have 64v, so I have no idea.
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