I would like to say how appreciated your help is.
I jumped on this adventure hopping not only to save some cash but also to have a fully functional and customised system to my needs.
Ended up with more problems than solutions.
Thank you all for your help.
I know but because one cell goes too high and the BMS kicks in stopping the charge process, this was the highest I managed to achieve.
I did this by charging all 1P4S banks with a 14,2V Victron charger and then parallel all cells in a 16P1S configuration for a couple of days.
I have also measured the DC resistance of the cells and got something between 3 and 8 mOhm. Have no clue if this is good or bad. The AC impedance stated by the seller is one order of magnitude lower...
Hard to tell as due to the covid-19 I have put my boat batteries DIY upgrade on hold.
Meanwhile, I was looking for a good power source to do a top balancing and put in practice what I learned here.
I guess considering the price I payed, the weight savings vs lead acid, if I get 90AH of the 100AH...
Thank you Sir.
In my case I do think top balancing is the correct way as the batteries will most often be fully charged.
Concerning the internal resistance, I realised that the uncertainty on the resistor and multimeter was comparable with the calculated resistance and therefore all results...
This is my first post although I have been registered and following for a while.
I have acquired the 16 prismatic aluminium cell pack from BLS following the review and advise by Will in his website. Additionally, I have acquired also 4 common port BMS rated for 100A...