Hello. I have some questions about power managment with battery cells. Within one battery pack there are 6 LiFePO4 battery cells connected in series (battery pack voltage is 19.2 and current is 10 A) . I have 10 battery packs to charge and share it with load (like power bank). I going to use LTC4015 charger for every battery pack and increase capacity by connecting this 10 battery packs in parallel. How i understand i can`t feed load with power more than power of one battery pack, because connection all battery packs in parallel require an ideal diode at each pack output and when one battery pack voltage become less than others its ideal diode will turn off this pack from common output, isn`t it? Is it posiible someway to increase total power on common output with this battery packs? Tnank you in advance.
Connecting this in parallel could be challenging since as you said the batteries are not balance and could cause loading to each other.
Please see link below as reference. It describes a component that is capable of balancing the current even if the source voltages are not the same
Hello. Thank you for your responce. Ltc4015 have internal ideal diodes, but i doubt can i tie each Sys output together? Will the output ideal diode block reverse current from other ltc4015 ics with absence of power supply for chargers or i must use individual ideal diode ic at each Sys output? Sorry, but Ltc4370 from your link have maximum input voltage of 18 V. Maybe there are some buck converters with load sharing from multiple different sources feature exist?
Currently, we don't know of any solution.
You should not tie SYS nodes together, but feel free to diode-OR externally. If there is not an ideal diode controller that is high-voltage enough, you could use external Schottky diodes to do the job if you can accept the accompanying power loss.