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How to properly charge a front and rear battery with HF1215 XS power charger

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I have a D5100R in the front under hood and a D3400 in my rear. Can I hook up the xs charger to the front battery and charge both at the same time? or should I charge each separately like I have been doing?

At the same time I mean leaving the two connected via two runs of 1/0 fused and grounded through the cars frame to each other with the xs charger pos/neg cables connected to the front or rear battery only.

Just wondering if it'll be okay or if itll cause the charging cycle to mess up.



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1 hour ago, Kyblack76 said:

You'll be fine. Hook the charger up and go

Alright thanks

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I was wondering same thing, thanks.

does anyone know if the max ah rating on battery chargers is legit?  Like mine says up to 120ah.  

Sundown NSV4 18"  +  Sundown SALT-4 Baby

MechMan Elite 370a  +  XS3100 - XP3000

SHCA 1/0 OFC(blue+  SMD Fuse Holders(blue)

Pioneer AVH-2440NEX  SHCA Pro RCA 


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