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OK, so put the batteries on a top up charge, individually , until the lithium chargers all reached their storage status or essentially full. I had measured the battery voltages immediately after disconnecting the busbar and they were all sitting at 13.18V.
After 6 hrs, and disconnection and re-measurement after 1hr, got the following results.
Bat A - 13.14/13.14, Bat B - 13.2/13.18, Bat C - 13.20/13.17, Bat D - 14.06/13.95
Full is 13.5
So back to ITech, they need to review with their engineers, and get back to me tomorrow. Something strange going on, BUT they want all 4 batteries returned to Perth for the assessment - urrgggghhhh, transporting lithium batteries cross country, this is going to be interesting, negating hundreds of thousand are shipped around now, but sure to strike some young upstart who declares they need to be delivered by Uber or similar from Melb to Perth.
Anyway, at worst I say no, and put up with 360a/hr instead of 400a/hr - not the end of the world I guess - just want something from ITECH to accept this odd situation and warrant the batteries for the full 3 yrs full replacement - difficult now they dont make this battery size or discharge profile, and then the remaining 2 yrs warranty pro-rata. I am leaning on the hope of fair outcome, will let you know.
Last edited by PeeBee; 12th February 2025 at 08:32 PM.