Dc to dc

Submitted: Tuesday, May 27, 2014 at 21:33
ThreadID: 107979 Views:2707 Replies:2 FollowUps:4
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Hi, wondering if anyone can help.

I have a 38 litre engel in my ute with a 100amp agm battery which just charges off the alternater via an isolator.

I'm worried the battery isnt getting charged high enough so was thinking of fitting a dc to dc charger, this same cable also runs to the van via anderson plug, the van has 2 x agm batteries also, all very heavy cabling installed by a qualified sparky.

What size dc charger would I need? If I bought this would it suffice,

http://www.ebay.com.au/itm/CTEK-SMARTPASS-DC-to-DC-Dual-Battery-Charger-Power-Management-System-Cycle-12v-/161251687589?pt=AU_Car_Parts_Accessories&hash=item258b597ca5&_uhb=1 .

The add states "Used together with a D250S, SmartPass provides optimal charging via CTEK's unique staged charging cycle, which also protects your batteries."

Do i need one of these as well? Is there something more suitable?

Thanks in advance, Wayne
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