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hello, Mixing solar panels – Dos and Don’ts

hello, I'm not sure I like the JK BMS box "cables" as much as the Seplos box "bus bars" - what do you think ? :oops: V4 Seplos box vs V4 new JK-BMS box

Hello - no display at this moment for the new JK-BMS V4 diy kit... :oops: source :

Hello - a 60€/80€ second hand ABB Shunt-Trip Breaker is a nice alternative :

Hello - WatchMonToolkitInstaller is safe to download (y):)

Hello - I recommend Ctek chargers :)(y)

Ultimately safer configuration (in my opinion) : WatchMon-CORE with 4 CellMate-K9

It depends on the equipment you choose, but one SCC is more economical than 4, and one $130 MakeSkyBlue 60A @ 48V for exemple, handles 2.800W... ;)

Hello - and if you go on 48v instead, you just need : 1 x Victron Smartsolar 150/45 for exemple (handles 2600W @ 48v) 4 x batteries@12V in series (or 16 Lifepo4 cells @ 3.2V in series + one BMS) 1 x 48V/(220V or 110V) inverter, like a Victron Phoenix inverter for exemple...

These codes are Data Matrix, not QR Codes.

Here is my list : ;) * Amy Zheng, or Libby, or Jenny Wu from Docan Technology (Shenzhen) https://docantech.en.alibaba.com/productgrouplist-827266293/LiFePO4_battery.html https://diysolarforum.com/members/amy-zheng.36117/ https://diysolarforum.com/threads/docan-technology.33231/...

Hello, have a look at this chapter: 7 : Ground, earth and electrical safety

Eve Official Store

4 x 105Ah cells@3.2V in parallel = 420Ah@3.2V battery pack. This add is knowingly misleading, but correct. ;)

Of course it would work. (y)

3P16S is not "no parallel just series" ;)

Sorry, it is impossible, "no parallel just series" = 48 cells in series = 48 x 100Ah@3.2V = 100Ah@153,6V ! The only one way to build à 300Ah@48V bank with all cells in series is to connect 16 300Ah@3.2V cells in series : => 16 x 300Ah@3.2V in series = 300Ah@51.2V = 15360 Wh = 15.36 KWh

Hello, - do you plan to use 48 x 100Ah@3.2V LiFePo4 cells ? - do you mean 16S3P setup ? => (16 cells in series) in parallel with (16 cells in series) in parallel with (16 cells in series) ? In that case you get (100Ah@51.2V + 100Ah@51.2V +100Ah@51.2V) = 300Ah@51.2V = 15360 Wh = 15.36 KWh and...

Hello, « mixing different panels, whether connected in series or in parallel, ALWAYS reduces the installed wattage. ».

Dark reader ! ;)

Hello, here is a handy worksheet.

Hello - Here is a nice vidéo about the Rec Bms :

Hello - 11.8V is in the "red zone"...