Thanks for the ideas Jay. It really isn't practical for me to remove the
batteries and rewire them in parallel.
I was wondering if I could build a simple "trickle charger" for the entire
pack.
I envision an isolation transformer 120vac in and 120vac out. The output
connected to a full wave bridge rectifier with perhaps an incandescent
light bulb in series with the output to limit the current.
This would supply ~169.68 vac peak or just over 13v per cell. Provided
that the output of the transformer was really 120vac...
The question is, if I start out with balanced batteries will they stay
balanced while being trickle maintained in series...?
Dave
OnTue, 16 Apr 2019, Jay Summet wrote:
If this is a one-time park long term storage type situation, perhaps you
could remove the batteries (or at least, their terminals) and wire all 12
in parallel and then use a small float charger on the whole set at once?
Alternatively, what is the self discharge rate of AGM's vs the projected
length of storage? If it's just for a few months, you could possibly just
charge them up fully and then disconnect them and be ready to recharge when
you return.
Jay
On 4/16/19 2:39 PM, David Delman via EV wrote:
I am going to have to store my eLectric DeLorean at a facility away from home.
The car has 13 Sears PM-1 lead acid AGM batteries.
Presently I use 13 individual chargers, one for each battery to keep them
charged and balanced. This won't be practical where I am going to store the
car.
What is the groups advice for keeping the batteries charged and balanced?
Thank you,
David Delman
eLectricDeLorean.com
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