Hi all,
This has had me stumped for a few days - and I can't really work out what is happening.
I've been using my Turnigy Reaktor charger and charging 1s4p cell configuration 18650 cells quite happily for a while now, and thought it would be good to charge more cells - although slower, by expanding this to a 1s12p cell configuration.
Charger information: https://hobbyking.com/en_us/0620-20...428&indexName=hbk_live_magento_en_us_products
I've only got a few hundred cells left to go to charge/test, and thought it might make it quicker to get through the initial charge by expanding this from 4 to 12 cells per charge session, and then I can just put them on before I go to sleep.
In the 1s4p configuration, I could charge at a maximum rate of 5A and it would start at that and complete the charge in a reasonable time.
However, in a 1s12p configuration, despite me starting at the same maximum rate of 5A, I am consistently finding (despite different cells and cell location in the holder) that it will start a maximum rate of 0.5A, and never complete the charge. The cell(s) seem to reach 3.6v (set at LiPo setting) and the charge rate drops to 0mA at this time. Even after 12 hours the cells never seem to get past the 3.6v.
Most of the cells are around 15mΩ, INR18650-20R.
Even if I put one or two in the holder, closest to the battery terminal connector from the charger, it is still attempting to charge really slowly.
Is there something fundamentally wrong with my logic in that I can charge them in a 1s12p configuration? Should I do what I was planning to start with and set it up in a 3s4p configuration instead? Or could it be the charger - being a RC charger it may have something that is limiting this in its software?
This has had me stumped for a few days - and I can't really work out what is happening.
I've been using my Turnigy Reaktor charger and charging 1s4p cell configuration 18650 cells quite happily for a while now, and thought it would be good to charge more cells - although slower, by expanding this to a 1s12p cell configuration.
Charger information: https://hobbyking.com/en_us/0620-20...428&indexName=hbk_live_magento_en_us_products
I've only got a few hundred cells left to go to charge/test, and thought it might make it quicker to get through the initial charge by expanding this from 4 to 12 cells per charge session, and then I can just put them on before I go to sleep.
In the 1s4p configuration, I could charge at a maximum rate of 5A and it would start at that and complete the charge in a reasonable time.
However, in a 1s12p configuration, despite me starting at the same maximum rate of 5A, I am consistently finding (despite different cells and cell location in the holder) that it will start a maximum rate of 0.5A, and never complete the charge. The cell(s) seem to reach 3.6v (set at LiPo setting) and the charge rate drops to 0mA at this time. Even after 12 hours the cells never seem to get past the 3.6v.
Most of the cells are around 15mΩ, INR18650-20R.
Even if I put one or two in the holder, closest to the battery terminal connector from the charger, it is still attempting to charge really slowly.
Is there something fundamentally wrong with my logic in that I can charge them in a 1s12p configuration? Should I do what I was planning to start with and set it up in a 3s4p configuration instead? Or could it be the charger - being a RC charger it may have something that is limiting this in its software?