Hi,
I have a unique situation when it comes to my parallel setup.
I have successfully paralleled two 17.5Ah 60V packs 16S 5P (Sanyo GA and LG MJ1 packs) and range has been dramatically increased (could easily hit 60 miles with a little tact on my Dualtron Spider).
My question is that the scooter came with a 66.4V charger. However, the manufacturer stated that 67.2V chargers are also fine, but they chose to include a 66.4V charger for increased cycle life.
Is there any ill effect from using the 66.4V charger to charge the internal battery and 67.2V 2A charger to charge external via their input lines? I have the two batteries disconnected when charging. Given that the two batteries should be within less than 1V of each other, I do not think there would be much ill effect during the connection as it would equalize around 66.6 -66.7V. The question would be if this is really bad for the pack over the long run, and if yes, why.
Second question would be, could I simply use the 66.4V charger to charge both packs while connected together? I understand that the external would be unable to balance and protect itself from overcharge using this method, but given that the charger is below the max charge, I would think this is safe (theoretically).
Thank you in advance for any guidance you all can provide!
I have a unique situation when it comes to my parallel setup.
I have successfully paralleled two 17.5Ah 60V packs 16S 5P (Sanyo GA and LG MJ1 packs) and range has been dramatically increased (could easily hit 60 miles with a little tact on my Dualtron Spider).
My question is that the scooter came with a 66.4V charger. However, the manufacturer stated that 67.2V chargers are also fine, but they chose to include a 66.4V charger for increased cycle life.
Is there any ill effect from using the 66.4V charger to charge the internal battery and 67.2V 2A charger to charge external via their input lines? I have the two batteries disconnected when charging. Given that the two batteries should be within less than 1V of each other, I do not think there would be much ill effect during the connection as it would equalize around 66.6 -66.7V. The question would be if this is really bad for the pack over the long run, and if yes, why.
Second question would be, could I simply use the 66.4V charger to charge both packs while connected together? I understand that the external would be unable to balance and protect itself from overcharge using this method, but given that the charger is below the max charge, I would think this is safe (theoretically).
Thank you in advance for any guidance you all can provide!