Battery charger-gctid396771

[Guest]

I need to replace my battery charger for my 1997 2355 (two batteries)

I was told to go with this

one but I'm not an expert. I would like some recommendations if you have any. Money does come into play here, I have a lot of other things going on at the same time.

Thanks

http://www.westmarine.com/webapp/wcs/stores/servlet/ProductDisplay?productId=12229&catalogId=10001&langId=-1&storeId=11151&storeNum=50523&subdeptNum=50529&classNum=50535#.T_JmqGt5mSM

[2850Bounty]

More info!

What is your goal?

Need to charge 2 banks, or one?

Is 15 Amps enough?

Maintenance charge, or will this be bringing low banks back up to full SOC?

Will you be using O/B 12 vdc while dock side and on S/P?

Some chargers split the Amp Output rating, meaning that an advertised 2 bank 20 Amp Charger, may only provide 10 Amps per bank.

[Guest]

Im on S/P at the dock but as you know my refridg, stereo etc run off the battery by morning my house bank is shot so I'd like to bring it up to full charge. A mechanic a few slips down said 15 amp should be enough but Im taking his word on that.

Ill have it hooked to both banks but I use one bank at a time, once I start the boat I switch back to house to charge it while I'm cruising.

This works fine but sometimes I'll spend the night on the boat without cruising and I hate to sit in my slip with the motor running to charge the battery while my slipmates eat my exhaust.

[2850Bounty]

tank1023 wrote:
Im on S/P at the dock but as you know my refridg, stereo etc run off the battery

1.... by morning my house bank is shot so I'd like to bring it up to full charge.

2.... A mechanic a few slips down said 15 amp should be enough but Im taking his word on that.

3.... Ill have it hooked to both banks but I use one bank at a time,...........

1..... Sounds like your HLBB is too small.

This should be size accordingly as to not depleat it beyond 50%. These batteries will last much longer if not taken down below 50% or so.

Each Amp Hour removed, must be replaced, and the sooner the better.

2..... This is something that we don't simply take a guess at.

I would calculate your daily 12 vdc loads in terms of Amp Hours. Include the approximate run-time only of the refrigerator, all lights, radios, etc, and see what the Amp Hours total.

Then size your new charger accordingly (and perhaps a new HLBB).

3... Not following this one.

2 bank charger connected individually to each bank????

Or single bank charger sharing charge lead w/ both banks????

.

[Guest]

tank1023 wrote:
I need to replace my battery charger for my 1997 2355 (two batteries)

I was told to go with this

one but I'm not an expert. I would like some recommendations if you have any. Money does come into play here, I have a lot of other things going on at the same time.

Thanks

http://www.westmarine.com/webapp/wcs...5#.T_JmqGt5mSM

try here for the best pricing I could find.

http://stores.ebay.com/The-ChargerGuy

[Guest]

That Charles charger is first-rate, and a good match for what you've described. I doubt West Marine is the best deal you'll find on it.

[Guest]

Just consider how I made my decision. When I bought my boat it had a 20A charger. It was dead when I bought it. So in my research looking for a new one I figured I wanted to be able to charge/"fill up" the batteries quicker. I decided to get a 40A Promariner Pronautic. It's been nice.

For example every year we go to a State park for memorial day weekend. There is no shore power and we rely on the 2 6V golf cart batteries we have on the "house" bank to last the 3-4 days. I know that with the fridge, head, lights and other 12V outlets running, we won't make it. We usually make a run to town on day 2 or 3 and get ice refilled and ice cream for the kids. While we're in town (20-30 minute run to get there and 1 hr in town) I am able to recharge while running and connected to shore power. The charger goes in the "Fast charge" mode and within 20-30 mins into "Absorbtion mode". By the time we get back we'll have enough juice back in the batteries to make it the rest of the way through the remaining part of the weekend. If we had a smaller amperage charger, I'm not sure if we would.

Best of luck.

[captharv]

Look at the old charger. If it's a Pro Mariner, and its dead, call them. They will sell yuo an equivalent at their cost. Usually about 1/2of West Marine prices.

Sizing?

read: http://www.baylinerownersclub.org/fo...s-and-Charging

Depends on size of batteries, and usage.

Rule of thumb: amp capibility to be 10% of the batteries' amp-hour capacity divided by 2 because you should never, ever, depleate the batteries past 30% and 50% is better.

[2850Bounty]

captharv wrote:
Depends on size of batteries, and usage.

Rule of thumb: amp capibility to be 10% of the batteries' amp-hour capacity divided by 2 because you should never, ever, depleate the batteries past 30% and 50% is better.

Well said!

[boatworkfl]

Battery state of charge chart. http://www.google.com/url?sa=t&rct=j...dZom6zao4aehTg

.

100%	12.7	2.12
90%	12.5	2.08
80%	12.42	2.07
70%	12.32	2.05
60%	12.20	2.03
50%	12.06	2.01
40%	11.9	1.98
30%	11.75	1.96
20%	11.58	1.93
10%	11.31	1.89
0	10.5	1.75

[Guest]

I know that the ProSport chargers get bashed here from time to time but I have had no issues with the 12A model in my 2355. However I do not rely on it as much as you detail. Mine is primarily to maintain the batteries while it sits in the driveway.