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Post by freezerfiller on May 2, 2015 20:27:33 GMT -6
Hook up the boat, fight the wasps, win the fight, only to trim up the motor and have nothing. break out the jumper cables to the other battery and nothing, jump to one of the trolling motor batteries and got the trim up to trailer ready... Not sure why two batteries would be completely dead. They are both two different brands and both were 2011 vintage. Doesn't matter, the admiral said get new ones, so that puts me on the platter if we end up in the gulf not starting even if it's the starter, solenoid, whatever...
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Post by Juan on May 3, 2015 4:46:37 GMT -6
How long had it been sitting? I wouldn't use those batteries for a core charge on the new ones if it were me... I'm betting they'll take a charge.
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Post by freezerfiller on May 3, 2015 7:56:58 GMT -6
Our both on a 2 amp charge last night. They seem to be holding ok. One is 12.8v the other is 12.7. They have only sat for 2 months. I didn't see where I had left anything on.
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Post by Juan on May 3, 2015 8:36:54 GMT -6
Are they on a Perko switch?
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Post by freezerfiller on May 3, 2015 11:07:52 GMT -6
No, that's whats so weird. They are connected with a battery isolator, which only connects when the alternator is running. So one battery was connected to the engine only, the other was connected to all my electronics and such. I wouldn't have been surprised if that one were dead, but the engine one surprised me. One is holding 12.7 so I'm keeping it. I'm going to take the other on the water today too although it's dropped down to 12.5 already. I'm going to consider this a fluke, take the voltmeter and jumper cables in case I need to borrow from the t/m batteries to get home.
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Post by freezerfiller on May 7, 2015 5:39:16 GMT -6
Well it seems the electronics battery dropped down to 11.3 with nothing connected when I checked it last night. It's getting replaced. I also determined that my old battery isolator had water intrusion, so it was likely allowing whatever drained the electronics battery to drain my cranking battery. After testing that, I went out and caught 5 nice catfish, as well as buying a waterproof battery isolator from yandina www.yandina.com/c100InfoR3.htm |
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Post by freezerfiller on May 7, 2015 21:28:55 GMT -6
New battery and the yandina combiner did the trick, I hope. Spent the rest of the evening cleaning fish.
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Post by CaptWoody on May 8, 2015 7:07:48 GMT -6
You should seriously consider a perko type switch to ensure both batteries are completly disconnected when off the water, and allow jump starting from both batteries at the flip of a switch.
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Post by freezerfiller on May 8, 2015 7:40:28 GMT -6
Yeah, I just don't like having to remember which one I'm running off and whether I remembered to turn it back etc.. The combiner is a great setup, I just bought a cheap one that was not waterproof the first time. Lesson learned.
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Post by Juan on May 8, 2015 14:33:28 GMT -6
I'm close but not completely senile yet so I like the perko switches.. I'm not familiar with battery combiners... what exactly do they do? I think they allow charging of two or more batteries at the same time from one source so do they take the place of a battery charger?
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Post by freezerfiller on May 8, 2015 18:05:32 GMT -6
Just separates your batteries when not charging, charges both once your cranking battery is fully charged. So if you run the lights or pumps too long you still have a fully charged cranking battery.
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Post by freezerfiller on May 8, 2015 22:39:26 GMT -6
They also have all kinds of combiners so you can charge your 24 or 36v trolling motor batteries while you run, again it only combines the batteries once the cranking battery (or battery you designate as primary) is fully charged or above 13.2v or so.
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Post by Juan on May 9, 2015 7:21:23 GMT -6
They also have all kinds of combiners so you can charge your 24 or 36v trolling motor batteries while you run, again it only combines the batteries once the cranking battery (or battery you designate as primary) is fully charged or above 13.2v or so. I need to look into one of those. I like the idea of charging the trolling motor batteries while running instead of depleting them and relying on the onboard charger to recharge them at the end of the day. |
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Post by CaptWoody on May 9, 2015 17:51:45 GMT -6
Juan, they are often referred to as a VSR, or voltage sensing relay.
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Post by Juan on May 10, 2015 4:55:54 GMT -6
Juan, they are often referred to as a VSR, or voltage sensing relay. Thanks Capt. but after doing a few searches and reading a bit, I think I'll keep charging the batteries at the end of the day with the onboard chargers. The VSRs scare me a little since there seems to be the possibility they could go bad and fry the electronics that are hooked to the house battery with a power surge. I think it's best I just keep the batteries separated and charge them the old fashioned way for now. |
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Post by gtightline on May 10, 2015 8:32:58 GMT -6
Juan I agree...Less to me is always better. Old school always works for me too.
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Post by CaptWoody on May 10, 2015 17:17:43 GMT -6
Some things are still good the old fashion way.  |
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Post by Simple Man on May 11, 2015 6:05:37 GMT -6
Some things are still good the old fashion way. Like blue bell ice cream?  ...... |
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Post by Juan on May 11, 2015 6:06:58 GMT -6
Some things are still good the old fashion way. Like blue bell ice cream? .... rofl Not so much |
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Post by gnrphil on May 11, 2015 10:36:17 GMT -6
Juan . Your Yamaha already has a secondary charging circuit built in, it does the same as a VSR. I don't know if it would be sufficient to charge the trolling motor batteries but it will do the house battery.
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......
