battery tenders ????
#22
11-12-2010, 11:29 PM
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Do you really mean "in series" or did you mean in parallel? Two batteries in series would produce 24 volts and all these tenders are rated for 12 volt batteries. By saying "in parallel" I mean that the tender is hooked to battery 1 negative and positive and then you jumper battery 1 negative terminal to battery 2's negative terminal and likewise with the positive terminals. A series connection would be tender to battery 1 negative, battery 1 positive to battery 2 negative, battery 2 positive to tender.
#26
11-13-2010, 02:07 AM
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Keep in mind that you can buy extensions to lengthen the wires that go from the charger to the bike. I'm pretty sure my HD dealer keeps 12' and 25' ones in stock. There may be other lengths available or you could piggy back them.
That way you could keep all your chargers in one place and just run wires to the bikes.
That way you could keep all your chargers in one place and just run wires to the bikes.
That's what I do too. I've had a Battery Tender jr. for years. I just drag the 25' extension around and plug it in for a while until the light turns green. I'll leave it on for an hour or so, then move to the next bike. Simple.
#28
11-13-2010, 06:04 AM
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DELTRAN...
great customer svs. - great warranty(never had to use it)
i have Deltran Plus on my equipment batteries...and the 800's on bikes...
the 800 is similar to the Jr...but waterproof, and you can use them on larger batteries, which you cant use the Jr, if theyre really discharged(call cust svs. for more details on that)
look for deals on ebay...
great customer svs. - great warranty(never had to use it)
i have Deltran Plus on my equipment batteries...and the 800's on bikes...
the 800 is similar to the Jr...but waterproof, and you can use them on larger batteries, which you cant use the Jr, if theyre really discharged(call cust svs. for more details on that)
look for deals on ebay...
#29
11-13-2010, 09:12 AM
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The harbor freight tender states it is not for use with AGM battery's. Read the fine print. Not sure if this will surface as an issue or not, but why make the disclaimer in the description? Absorbed Glass Mat battery's are not lead/acid battery's.
http://www.harborfreight.com/automat...ger-42292.html
Whew...those multi tenders are PRICEY. I wonder if you could get away with jumper wires in parallel (positive to positive - negative to negative) to another battery from a single tender. Reduced amperage won't hurt a battery, just take longer to get to a full state of charge. Once it gets to the float phase of operation what difference does it make...especially for winter storage?
http://www.harborfreight.com/automat...ger-42292.html
Whew...those multi tenders are PRICEY. I wonder if you could get away with jumper wires in parallel (positive to positive - negative to negative) to another battery from a single tender. Reduced amperage won't hurt a battery, just take longer to get to a full state of charge. Once it gets to the float phase of operation what difference does it make...especially for winter storage?
Back in the 80's, both the AGM and Gel battery industries developed specific charging algorithms that were more sophisticated than what’s required for the wet cell battery. It took some time, but battery charger manufacturers slowly started producing chargers with these more sophisticated algorithms.
If the charger's documentation states that it's not for use with AGM and Gel batteries, it's probably because it lacks some of the more sophisticated circuitry to do so. Will it charge them any way? The answer is probably yes. But if you want to maintain the battery correctly and get the longest life possible, go with a charging system that is designed for the AGM/Gel technology.
For the long term, I would be leery of a cheap off brand charger. I was in the Gel battery industry some years ago, we seen a lot returns from overcharging as a result of chargers that were not designed for the product.
Hope this helps.
