[Ham-Computers] Parallel gelcel batteries

[Loren Moline WA7SKT]

Goran,

Wouldnt use diodes...although it was said paralleling is a no no I see no 
problem if the batteries are new and inspected periodically.

If you had just one battery and it went bad you would be down anyway so 
decide for yourself.


Loren



Loren Moline WA7SKT  CN86cx
Member: ARRL, Pacific Northwest VHF Society #151
2 Meter EME initials = 23
2 Meter EME with 4 X K1FO - 12's, IC-820H, and 380W from TE Systems 1452G





>From: Göran Hosinsky <ea8yu at arrl.net>
>Reply-To: "Computers (or other) used for amateur radio, communications,  or 
>experimenting" <ham-computers at mailman.qth.net>
>To: "Computers (or other) used for amateur radio, communications,  or 
>experimenting" <ham-computers at mailman.qth.net>
>Subject: Re: [Ham-Computers] Parallel gelcel batteries
>Date: Fri, 13 Aug 2004 07:42:01 +0100
>
>Do you mean diodes on the charger side or the load side?
>
>Loren Moline WA7SKT wrote:
>
>>Goran,
>>
>>I see no reason why it wouldnt work. Each battery will draw a current 
>>dependent on its charge condition with the total for all the batteries 
>>being drawn from the charger of course.
>>
>>There are 2 reasons I see for diodes which will drop voltage by .7 volts. 
>>One is to prevent discharge through a charging device and the other to 
>>prevent drawing from certain batteries while being able to charge all from 
>>same source. A light bulb of proper wattage can be a good current limiter 
>>with the current max being the load of the light bulb at 12 volts.
>>
>>Loren
>>
>>
>>
>>Loren Moline WA7SKT  CN86cx
>>Member: ARRL, Pacific Northwest VHF Society #151
>>2 Meter EME initials = 23
>>2 Meter EME with 4 X K1FO - 12's, IC-820H, and 380W from TE Systems 1452G
>>
>>
>>
>>>From: Göran Hosinsky <ea8yu at arrl.net>
>>>Reply-To: "Computers (or other) used for amateur radio, communications,  
>>>or experimenting" <ham-computers at mailman.qth.net>
>>>To: ham-computers at mailman.qth.net
>>>Subject: [Ham-Computers] Parallel gelcel batteries
>>>Date: Fri, 13 Aug 2004 07:25:08 +0100
>>>
>>>I would like to put six 12V 8Ah in parallel for power.
>>>I am thinking of float charging them
>>>and using a series resistor to limit the current from the
>>>charger in case the batteries are flat.
>>>Would this system work or do I have to isolate each battery
>>>with diodes on the charge side and/or on the load side?
>>>Goran
>>>
>>>_______________________________________________
>>>Ham-Computers mailing list
>>>Ham-Computers at mailman.qth.net
>>>http://mailman.qth.net/mailman/listinfo/ham-computers
>>
>>t w
>>
>>
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>
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