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Read first and watch after. I see a lot of people installing "Switch Disconnectors" for DC Lithium Installs thinking that it can be operated when everything goes wrong to stop the fire, explosion or whatever they imagine would happen (this is not a single 70ah LA car battery anymore). The...

I am looking for DC21, DC22 and DC23 data on Merling Gerin MGI1604 Switch Disconnector. The later indentical Interpact range have deratings for DC. The switches are identical to the older Merlin Gerin with addition of a newer branding. Before anyone states the DC ratings will be written on the...

This is only Vented Lead Acid. Lithium would be interesting. BS EN 50272-1 2010 ‘Safety requirements for secondary batteries and battery installations’. Items which could produce sparks (e.g. manual disconnects, fuses, relays) should not be positioned within a battery box or directly above one...

Calling all Copper Lug Guru's - which lug would you choose and why? I have ordered from 2 suppliers. 1 is an electrical supplier and the other specialise in DC cable and Forklifts, HGV and all the big Automotive stuff. The shorter lugs on the left are from the DC cable and big stuff guys and...

Elcheapo Hydraulic Hex crimper results, as expected...stick to Burndy mechanical indent crimps eh! https://prnt.sc/exkhLIeFxxnm $50 Amazon hydraulic crimpers. Metric 35mm copper lug Be stamped. 35mm copper 1500VDC cable. Cut carefully with a dremel grinding wheel. Was a bit eager in the...

I'm liking the idea of clear heatshrink on all my cimped lugs! Your Opinions Please..... I think I am going to go for all black 35mm cable with clear heatshrink/adhesive on all crimp lugs, with a cheeky slither of RED heatshrink just before the clear for identifying my positives. I'm liking...

Just running a test rig with some small sla's to track the data with new panel setup before finalising install. This is a 16-18 Degree C day with no sun and just heavy cloud northern hemisphere (London). My 2 x 345W Qcell panels on short circuit mid day facing south lying flat on the ground are...

This paragraph is in the VICTRON Documentation In case of series-parallel connection, the midpoint interconnecting cables must be sized to at least carry the current that arises when one battery becomes open-circuited. - In case of 2 parallel strings: cross section 50% of the series...