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98outback
01-30-2009, 11:59 AM
WHat is the best way to charge an optima blue top? It is the d34m so it is for cranking and deep cycle. Also what is a good charger? I have read that you need to use a charger that is made for AGM batts. Thanks

zegm
01-30-2009, 01:12 PM
98
I bought 2 deep cycle Optimas a couple of years ago and at the same time I purchased this charger and it has worked great now for over 2 years.
http://www.boatersworld.com/product/199270133.htm
But it is a little pricey! Luckily it was for a work project so it didn't come out of my pocket.

kaneboats
01-30-2009, 01:16 PM
Them blue batteries take something besides amps and volts?

zegm
01-30-2009, 04:43 PM
No, but there might be a concern over providing to many amps causing the gel to boil or something. Unless I am in a super hurry I always thought it is best to use the lowest amps you can when charging a normal wet cell battery.

98outback
02-04-2009, 08:35 AM
Would this charger work? I have a couple gift cards to west marine. Im looking at the one with 2 outputs.

http://www.westmarine.com/webapp/wcs/stores/servlet/producte/10001/-1/10001/299089/377%20710/0/battery%20charger/Primary%20Search/mode%20matchallpartial/0/0?N=377%20710&Ne=0&Ntt=battery%20charger&Ntk=Primary%20Search&Ntx=mode%20matchallpartial&Nao=0&Ns=0&keyword=battery%20charger&isLTokenURL=true&storeNum=5002&subdeptNum=9&classNum=683