Charging Deep Cycle Batteries

Kev,
what is the output of the charger you intend to use and what is the size of the battery/batteries you intend to charge.

That information will help if we are to give you accurate advice.

Cheers, bruce

I have used a Calbrie 17 amp charger from Super Cheap for 5 year excellent ,made in Australia,paid around $200 for it.I also have a Ctek 25 amp in caravan they are not the only battery charger as some people think ,you need one that has some buzz.

3-4 hours is nowhere near long enough to charge a battery... that's what it takes to charge a motorcycle battery. Deep cycles like long, slow charges.
HTH

2 years ago I purchased a Projecta 25 amp charger to charge 2x100ah calcium deep cycle batteries. Apert from the usual "battery type" it also has a "power supply" setting. This will provide a constant 13.8 volts and can be used to keep batteries charged whilst there is a connected load. Works brilliantly. Naturally you must switch the mode to the appropriate battery type for a complete charge. Th other thing I like about these units is they have a remote control panel which shows voltage and charging current, plus the charger can be controlled remotely.

There are several models in the range up to 50 amps.

Cheers
Racey

I agree with those suggesting a CTEK charger, although 25Amp is certainly on the high side I think I would have recommended a 15Amp unit for a 100AH battery. I believe the rule of thumb is a charge current equal to 10% of the battery capacity.

I have had a small 7 amp CTEK charger for several years and used it mercilessly to charge my 150+100AH batteries from a quite low state with all the accessories still being used such as the WAECO 80L fridge and various lights chargers etc. The charger gets quite hot at times (running at full capacity fulltime) but has never let me down. I am not advocating the 7Amp size as it is way too small for my use and I should spend the money and get a bigger one, but they are very reliable and dependable.

Have a look at Ozcharge chargers as well. My local 4by shop's been selling them for some time and never had a complaint. I've been trickle charging my 2 100 ah calcium batteries with one for 3 years no probs.