Micro USB for charging e-Board battery

These newer cables have the ability to charge phones at 4A, could they handle charging an e-Board battery?

I’d love to use these kind of magnetic adapter:


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14 if i remember right

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In most situations, No. Charging cables are generally above 22awg and can’t Handle the amperage or voltage. It would be a firehazard also if you did try it, you should stick with 18 and below to be safe if anything. You can look up a chart for amperage to Awg wiring.

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There must be a magnetic charger which supports 12awg currents

total overkill. you only charge with 2-4A - almost every cable can handle that.

@Eboosted Just look at my magsafe topic if you want a magnetic connector.

was about to ask the same, since im in a bus on my way to work atm and theres an usb charger in front of me.

You’d have to use a voltage stepper from 5v to your max charge battery voltage lol

we are not talking about USB chargers but magnetic usb cables.


This supports currents 15A to 25A


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Rosenberger connectors are what mellow uses. They are huge however…

Wireless charge work? Like phone?

No - there are no inductive chargers out there for the voltage we use.

Rosenberger look amazing, but I see they are only good for 24V, on a 10s4p the voltage would be 42V, would that be safe?

typically the voltage rating is not as important as the current rating. At 24 or 42V it usually does not matter.

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@Maxid could you explain more about how it doesn’t matter? For battery systems that are above 24V (which is most of them for our use) wouldn’t this port be unable to handle the voltage. For example, my 10S4P battery uses a charger that needs to reach 42V a full charge and for the BMS to balance the cells.

I’m not disagreeing with you, I simply don’t understand why we’d disregard the stated voltage rating.

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You wont be able to charge a 42V battery fully with a 24V charger without a step-up converter. E: if we’re talking about only the connectors then I agree, voltage doesn’t matter. E2: I lie. It probably has something to do with creepage or arcing, higher voltages need larger clearance to not arc

At 24 or 42V the distance in air that would cause an arc is so small that you will not see a difference.