Charging front and rear battery in car

[soundstream15]

Can I throw my battery charger on the front battery so it can charge that and the rear battery?

If I can, should I use 10amp? Not sure how long it would take. I know my resting voltage is 12.4 rear battery. Kitneik hc2400. Front battery should be about same

[TRON]

I charge both my batteries under the hood, maybe a 5 foot fun of 1/0 between them, and the voltage is the same +/- .02 volts.

I don't know how big the distance can be for it to be a problem.

[DTS909]

Yes you can charge the back battery from the front. What kind of batteries and charger? 12.4 is low for resting.

[soundstream15]

Yellow top up front and kitneik hc2400 in the back. Not sure what kind of charger it's a older one but it works