You can use either charger, just double check that the motorcycle charger is for 12V batteries

Thank You, Niek.

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Hello Mel , check the charge rate for the motorcycle charger. And seen if it matches the specs for the battery. Some motorcycle chargers are reffered to as "battery tenders" and can have charge rates lower than one amp. That would never charge the battery so make sure your charger can do a minimum of 1.5 amps or higher. Batteries slowly loose charge over time and these battery tenders just keep it topped off at a very low rate. The car/motorcycle chargers that are rated 5 to 6 amps or 5000mah to 6000mah are going to be best for charging two batteries at once. Schumacher makes descent chargers that are sold at walmart I like to use. Moral of the story is make sure the charge rate meets the minimum requirements of the battery then remember to double the requirements because your charging two.

thanks , Josh!

Thanks Niek Thank You

the motor cycle battery charger is 1.5Amp.

My car battery charger is 12volts ,10Amp, except start engine which is 55Amp. It also has a 2Amp setting. So, I guess I will put it on 10Amp.

Check your battery specs to see if each battery is recommended to charge at 5 amps. For bigger sealed lead acid batteries it's fine.

The battery is the same Exact ones that you got for $37.50 a pair.