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Message started by ahusain on 06/24/15 at 10:26:43

Title: Dead (new) battery. Revive with tender?
Post by ahusain on 06/24/15 at 10:26:43

Womp womp. I left the bike in "P" for a couple of days and came back to a dead battery. Any chance I can revive it with a tender? The lead-acid battery is new this season. I am using a Stanley BC209 - 1.5 amps.

Thanks.

Title: Re: Dead (new) battery. Revive with tender?
Post by hotprops on 06/24/15 at 11:20:38

no, ask me how i know :-/

Title: Re: Dead (new) battery. Revive with tender?
Post by Gary_in_NJ on 06/24/15 at 11:28:47

You're gonna need a proper battery charger to bring the battery back from such a low state.

Title: Re: Dead (new) battery. Revive with tender?
Post by ahusain on 06/24/15 at 11:52:59

52585C565D545059070105350 wrote:

You're gonna need a proper battery charger to bring the battery back from such a low state.

Do you think something like this http://amzn.com/B0009IBJE4 would work?

Title: Re: Dead (new) battery. Revive with tender?
Post by stewmills on 06/24/15 at 11:55:26

There are folks here that claim there is a way (or maybe it's another site) where you have a separate battery that has a charge and you connect them in series (I think). My guess is that when the charger sees a dead battery it does not even try to charge it, so the extra battery connected to it makes it see some of a charge and says "hey, I need to charge this low (not dead) battery".

Hang tight and let some of the other folks chime in and see if they have any insight into this theory.

I am not en electrical expert nor have I done this, but seems I recall something to this effect being a possible solution.

Title: Re: Dead (new) battery. Revive with tender?
Post by Dave on 06/24/15 at 12:28:14

If your battery tender is a "smart" charger and monitors voltage....it will not charge the dead battery.

You need a primitive charger that just plugs in and charges and doesn't monitor anything....at most it will have an ammeter to show the charge rate. Stop by old yard sales and flea markets and pick one up if you find a good one.

And....you can bring the dead battery up using a smart charger by connecting the dead battery to a good battery and then charging them both (as others have indicated).

And maybe your new battery is toasted......not sure if the gell or glass matt batteries are tolerant about a full discharge as the standard batteries were.

Title: Re: Dead (new) battery. Revive with tender?
Post by Art Webb on 06/25/15 at 15:07:49

7E79687A606461617E0D0 wrote:

I don't think the tender sees a dead battery and refuses to charge it, I think it simply doesn't see it, since it detects voltage
connecting it in series will make the tender work
weather the battery will come back depends on how resistant it is to damage from discharge
I'd try it, before shelling for a new battery

Title: Re: Dead (new) battery. Revive with tender?
Post by Gary_in_NJ on 06/26/15 at 05:30:35

The proper connection sequence for a two-battery charge is:

Positive to positive
Negative to negative

This keeps it a 12VDC system. If you go + to - and vice-versa it requires a 24VDC charger.

Title: Re: Dead (new) battery. Revive with tender?
Post by justin_o_guy2 on 06/26/15 at 06:52:26

Leaving it dead,well, that will kill it. Battery life is strange, some crap out in weeks, some outlast a pet. I've left the key on on the backhoe twice, sucked that battery about flat, yet, it lives. Essential tools, in life, tires need air. How anyone lives without a compressor is beyond me. Batteries need maintenance, voltmeter, charger,,
http://www.oreillyauto.com/site/c/detail/SS01/01397/N0366.oap?ck=Search_N0366_-1_-1&pt=N0366&ppt=C0061

Test specific gravity,
Antifreeze checker ... pressure gauges. Survival takes tools.
There was no forum, nobody to ask, and the guy at the parts store told me to knock a hole in the hood, drop a chain through and chain it shut.
BUUUuut, my heart couldn't allow me to not work on stuff. Before I learnt how to figure it out, I probably replaced battery, alternator and voltage regulator on a few cars, when all I really needed was one,
Now, pull into a store, they plug in, sheesh.
Kitchens need tools, knives, cuting board, stuff.
Cars, bikes, heck, ya just gotta have some stuff.

Title: Re: Dead (new) battery. Revive with tender?
Post by stewmills on 06/26/15 at 13:36:01

646E6A606B62666F313733030 wrote:

The proper connection sequence for a two-battery charge is:

Positive to positive
Negative to negative

This keeps it a 12VDC system. If you go + to - and vice-versa it requires a 24VDC charger.

Yep, Gary is correct. Connect in PARALLEL. I always get the series and parallel mixed up. Oopsie!!!! :-/ :-/

Title: Re: Dead (new) battery. Revive with tender?
Post by Art Webb on 06/26/15 at 22:07:50

Hell, I did, too, don't feel bad

Title: Re: Dead (new) battery. Revive with tender?
Post by justin_o_guy2 on 06/26/15 at 22:38:40

You Can't be seriesous,

just try to remember that parallel connections create more current paths, allowing more flow ( current ) while operating at the same pressure ( voltage ).
Series connections add voltage, but still just one path.

Title: Re: Dead (new) battery. Revive with tender?
Post by Art Webb on 06/27/15 at 12:29:25

Remember? now you're asking a lot ;D
I think I've been senile all my life :o

Title: Re: Dead (new) battery. Revive with tender?
Post by justin_o_guy2 on 06/27/15 at 17:04:29

Doctor asked me if I had been having trouble with my memory.
I asked her

How would I know?

Title: Re: Dead (new) battery. Revive with tender?
Post by stewmills on 06/27/15 at 20:34:11

223D3B3C21261727172F3D317A480 wrote:

Doctor asked me if I had been having trouble with my memory.
I asked her

How would I know?

i was taking that ginko biloba stuff for memory, but kept forgetting to take it. :-? :-?

Title: Re: Dead (new) battery. Revive with tender?
Post by Dave on 06/28/15 at 04:53:15

A couple of years ago I picked up a prescription for Poison Ivy.....and the Pharmacist asked me if I was taking any other medication.

I told her I take vitamins. Saw Palmetto for a healthy Prostate....and I was also taking Ginko Biloba - but I couldn't remember why!

She thought that was pretty funny! :)

Title: Re: Dead (new) battery. Revive with tender?
Post by justin_o_guy2 on 06/28/15 at 04:55:51

It was,if you did it on purpose.

Title: Re: Dead (new) battery. Revive with tender?
Post by Dave on 06/28/15 at 13:50:14

687771766B6C5D6D5D65777B30020 wrote:

It was,if you did it on purpose.

Did what? :-/

Title: Re: Dead (new) battery. Revive with tender?
Post by justin_o_guy2 on 06/28/15 at 14:10:31

Uh oh...