Question on batteries!

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Question on batteries!

Postby amm » 12 Aug 2017, 18:27

Hi,

I bought some gerbing glove liners and heated socks. I have seen all the information on here about batteries and wondered if you could advise what batteries would be best for these. I was hoping I could stick the batteries under my wheelchair, out the way.

The info on the gloves says:
Source: 12-volts DC
Current: 2.2 amps
Watts: 27 watts

and the socks info:

Source: 12V DC
Current: 1.4A / pair
Watts: 16.8W / pair

Any help would really be appreciated, as it would be nice to go out and for them to last 3 or 4 hours (If this is possible)

Thanks
amm
 
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Re: Question on batteries!

Postby Burgerman » 12 Aug 2017, 18:55

You could run them via an inverter from eBay directly from your wheelchairs charge connection. It would take 3.6A total, at 12V but under 2A from a 24v supply. So you would take 8Ah ftom your wheelcair in 4 hours. From the approx40 to 50 you have avaiilable.

Or an additional 16Ah 12V battery would be needed. But I suspect the spec is wrong. And it will be less or its thermostatic and so switches on/off. Because it seems like a lot of power.

An additional 14Ah is needed for a lead battery to work. To get 16Ah usable. So a 30Ah lead battery or bigger would be needed.

Or a 20Ah capable lithium. Eg FOUR of these in parallel would run for a littleover 4 hours: https://hobbyking.com/en_us/multistar-h ... -pack.html
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Re: Question on batteries!

Postby motoman » 13 Aug 2017, 13:34

I've got a Gerbing heated vest and socks. I wired in a 24 to 12 volt converter like this:
http://www.ebay.com/itm/DC-DC-Voltage-C ... SwhRxXKLHW
Directly to the battery with an inline fuse and a switch and ran the Gerbing plug under my arm rest. I also use the Gerbing controller otherwise I get too hot. Also, with the controller it does not use nearly as much electricity and I barley notice a range difference with 4 or 5 hours of use.
Works great and no separate battery to buy. It cost me about 20 bucks for the whole affair.
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Re: Question on batteries!

Postby amm » 14 Aug 2017, 17:50

Is it possible to somehow use the xlr chart port on the controller?

On another battery note, I use eneloop AA/AAA's for some photography equipment, and I'm looking for a charger that can handle 8+ or charge 4 quickly.
Would these chargers be ok or would the ruin the batteries:

https://www.amazon.co.uk/EBL-Battery-Ch ... CP738QKWJK

https://www.amazon.co.uk/Vapextech-Supe ... charger+aa

and
https://www.amazon.co.uk/Youshiko-YC400 ... charger+aa

thanks
amm
 
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Re: Question on batteries!

Postby Burgerman » 14 Aug 2017, 19:51

The chargers I dont know. We use a somewhat better one, but its overkill for a few AAs.

Charge port can provide up to 12A and at 24V as its connected directly to the battery on the chair. Thats 280 watts. Beyond that youwill damage something.
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Re: Question on batteries!

Postby motoman » 15 Aug 2017, 03:19

amm wrote:Is it possible to somehow use the xlr chart port on the controller?

thanks


The Gerbing controller works on 12 volts so it wouldn't work with the XLR port
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Re: Question on batteries!

Postby Burgerman » 15 Aug 2017, 03:46

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Re: Question on batteries!

Postby amm » 25 Sep 2017, 11:34

Hey,

Sorry I haven't had a chance to get back on this thread.
Burgerman wrote:Or an additional 16Ah 12V battery would be needed. But I suspect the spec is wrong. And it will be less or its thermostatic and so switches on/off. Because it seems like a lot of power.


Which spec did you mean, what the gloves/socks require?

Burgerman wrote:You could run them via an inverter from eBay directly from your wheelchairs charge connection. It would take 3.6A total, at 12V but under 2A from a 24v supply. So you would take 8Ah ftom your wheelcair in 4 hours. From the approx40 to 50 you have avaiilable.

Or an additional 16Ah 12V battery would be needed. But I suspect the spec is wrong. And it will be less or its thermostatic and so switches on/off. Because it seems like a lot of power.

An additional 14Ah is needed for a lead battery to work. To get 16Ah usable. So a 30Ah lead battery or bigger would be needed.

Or a 20Ah capable lithium. Eg FOUR of these in parallel would run for a littleover 4 hours: https://hobbyking.com/en_us/multistar-h ... -pack.html


I like the idea of 2 or 4 batteries. How would i then connect these to the gloves/socks.
I could just strap the lithiums under my wheelchair so that would work well
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Re: Question on batteries!

Postby Burgerman » 25 Sep 2017, 12:32

Which spec did you mean, what the gloves/socks require?


Yes. If that is correct you will probably catch fire. :shock: Seems about 2x what you would need. May be wrong and not well insulated.
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Re: Question on batteries!

Postby amm » 25 Sep 2017, 12:55

The Spec seems right as a few websites list in, the bigger glove is listed as 12v 2.2A too.
Here: http://www.getgeared.co.uk/gerbing_heat ... 8200103490

and socks: https://www.twowheel.co.uk/gerbing-12v-heated.html

the battery is here: https://www.twowheel.co.uk/gerbing-b12v ... r-kit.html.

I figured a homemade lipo solution would be longer lasting than the battery above
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Re: Question on batteries!

Postby Burgerman » 25 Sep 2017, 13:19

All may be true. Butremember that you dont have the 100mph icy blast as you are not on a motorcycle. So they are going to be over powered unless thermostatic. It may be better to use 6V. Or 7.2v or 8.4v.
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Re: Question on batteries!

Postby amm » 25 Sep 2017, 14:08

I see what you mean. I'm trying to work out the best way to get batteries as it would be a bit annoying to get less than 12v and find out theyre not warm enough!

What 7.2 or 8.4's would be good?
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Re: Question on batteries!

Postby Burgerman » 25 Sep 2017, 15:48

maybe. You need to test.

Put them on, add more volts till its warm. Eiher AA rechargables or bench power supply. Test on 12, test on a 9.6v drill battery etc. Whatever you have.
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Re: Question on batteries!

Postby sad_vampire » 25 Sep 2017, 22:30

I can confirm that heated motorcycle gloves work well in temperatures of -8C at around 90mph (no fairing), so should be good in a wheelchair at -24C to -30C.
Higher temperatures will require thermostatic control or a manual switch else it'll be like being in a toaster.

:D
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Re: Question on batteries!

Postby amm » 27 Sep 2017, 09:17

I do have a temperature controller like this: http://www.getgeared.co.uk/gerbing_tc-d ... 8200103490

I will try out some different batteries when my dad is back up.
But given i have a temperature controller, would it just be worth getting 12v and turning it down on the controller or would this be quite ineffecient compared to a lower voltage battery?
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Re: Question on batteries!

Postby Burgerman » 27 Sep 2017, 11:11

Same.
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