Using Lithium Ion Safely in without BMS situation

Ok I have found time to draw this in MS Paint:

Please note that S1, S2, and S3 connects all the three batteries to the circuit respectively and upon switching on the relay connects all batteries in series provided the limits of LVC meets the desired voltage. In a situation where one of the pack goes below LVC point, the entire battery will stop working immediately.

Thank you very much for sharing such precious knowledge and experiences with me. You all have been a big help.

Respectfully
Naeem

PS. I have been assigned the duty as coordinator for M.Phil and Ph.D students of the discipline of Education alongwith my position as Personal Assistant to the Director in Institute of Education & Research, University of Peshawar. So, I have such a lot of office work these days. That is why I am not showing up regularly.
 

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Naeem Thanks you are much loved here on E.S. as you well know. Thanks my friend.
Yes a runt used cell can show up any time and vimpire the battery.
Vimpire's all i wanted One box of Zombies please.
 
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