[Ham-Computers] Parallel gelcel batteries

[Göran Hosinsky]

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
>>
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> 
> t w
> 
> 
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