NoordSolar

Looking for Zketech battery tester owners with a view to compare findings - message me if you have one

For those who have the Svolt blades cells Altergrid now has the brackets and busbars to but it all together very nicely . see https://altergrid.co.za/product/middle-bracket-for-svolt-184ah-cell/

Thanks !

Thanks I emailed them today but no answer , I guess service is not one of their strong points. What does a meter of cupper 20mm cost ?

Where did you get copper bar of that size from?

Is the pipe simply squashed , so its two layers ?

Where did you get this from ?

Altergrid is getting in 280's in the next few days , give them a shout

I think I have found a crowd in Pinetown that will do it

These cells need very little top balancing - they are all within 1% is capacity and initial charge . I would just charge them all in series with your BMS and let the BMS top balance it if you have a BMS with decent balancing current

Been continuing testing these cells and one day after the cold spell it got down to 11 deg in my testroom and capacity therefore measureed 3 AH lower than the previous. HAve now rigged a heater to keep the cells at around 25 deg and the change is remarkable - capacity are all now about spec at around 186-188AH ( to 2.5 V ) rated spec is actually down to 2.0V

Has anyone had busbars made using laser cutting copper?

Regarding busbars , one could use 3 two hole busbars to link two adjacent cells for a 2P battery but am looking to make a busbar like this ( Busy getting a quote from China. for this )

I'm be using the clips and possibly busbars from Altergrid who will be importing them ( expected next month ) . Will stack two packs of 16 on top of each other on a 70cm deep shelf

Thanks well spotted !