Recommend a portable battery charger/maintainer - SailNet Community

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Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
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Old 02-07-2014
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Recommend a portable battery charger/maintainer

Hey All,

We are on our second season with the boat and last season had a bad experience with a Schumacher portable marine charger that I noticed was hitting 16v (I checked this with a multimeter) and therefore was boiling my batteries.
I tried calling the manufacturer but they blew me off and now I am very reluctant to purchase another Schumacher model, they seem to be prevalent in the market for some reason.

I've been searching for a decent replacement to top up the batteries when we visit the boat each weekend so I'm looking for something dependable that will preferably be automatic and go into a tickle or float mode, although I would not leave an unattended charge overnight.

Would you guys please recommend or let me know what you are using?

I have 2 banks configured as follows;

HOUSE
DieHard Marine Deep Cycle/RV Battery, Group Size 24M
CCA (0F): 500
Reserve Capacity (RC): 135 min.
Amp Hours at 20 Hour Rate: 80
DieHard Marine Deep Cycle/RV Battery, Group Size 29HM
CCA (0F): 675
Reserve Capacity (RC): 200 min.
Amp Hours at 20 Hour Rate: 115

START
DieHard Marine Starting Battery, Group Size 24MS
CCA (0F): 500
Reserve Capacity (RC): 90 min.

Thanks in advance

Last edited by pfile; 02-07-2014 at 05:16 PM.
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Old 02-07-2014
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Re: Recommend a portable battery charger/maintainer

I don't know if it perfectly fits your needs, but I recently purchased a CTEK 7002, (cheaper from Amazon), which can do float maintenance. It's definitely priced above the cheap Schumacher ones, but so far it's worked well with the 3 Group 31 Gelcells that I'm winterizing.

Good Luck..
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Old 02-07-2014
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Re: Recommend a portable battery charger/maintainer

Unless you have a specific reason for specifying a portable battery charger, I'd think about installing a permanent battery charger in your boat and simply turning it on while you're aboard and off when you leave the boat.

There are lots of choices, but one of the best IMHO and most economical would be one of the Iota DLS chargers. They come in sizes from about 15A to 90A. I've had two of them for almost 10 years, and they run 24/7. Have also installed a bunch of them on client's boats.

For your battery setup....two Group 24s for the house and one group 24 starting battery....the Iota DLS-30 or DLS-45 would be appropriate. Be sure to get the IQ4 smart-charge option (either built-in or plug-in). A good source for these is Northern Arizona Wind and Sun.

If you want to go first class, the ProMariner and Sterling Pro Ultra series are great chargers, but a bit pricey.

If you must go with a portable charger, the West Marine red battery chargers are very good. They are often on sale for under $100. However, it would be a pain in the *ss to carry these around and hook them up every time you come aboard. A fixed charger would be much more convenient.

Bill

Last edited by btrayfors; 02-07-2014 at 08:39 PM.
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Old 02-08-2014
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Re: Recommend a portable battery charger/maintainer

Also many marinas do not allow portable chargers to be used in the slip. At least the contracts I have read require permanent mount marine chargers.

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Old 02-13-2014
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Re: Recommend a portable battery charger/maintainer

Thanks for the recommendations guys. I think I will take install a proper marine charger following the advice on mainsails site.

Thx
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