Thought for those interested I would give a run down of the batteries
which recently landed - I will try and update with more info over time, as they are not even in the boat
I have 1120Ah @ 12v which is 16 x 280 x 3.2v which were purchased on Alibaba from a supplier recommended by a friend - He has been running the same for the last year and has had zero problems with them - He also lives aboard.
Cost of batteries
, duty and GST was USD $1865 whilst other upgrades to accommodate them on the boat
is around USD $2000.
was 8 weeks (Lithiums have to come by boat into Australia), this would have been 6 weeks if TNT had not delivered to the wrong address, who was a mine worker and was away from home for 2 weeks.
A thorough physical inspection
revealed no issues and all walls, seals
and terminals are in good condition, so from that front I am very happy. I did order larger bus bars, but China
they had to stitch me up on something - Instead of the 20mm x 4mm Busbars they gave me 20mm x 2mm and only 20 of them as well, so that was a bit annoying.
I checked the voltage of each battery
and they appear very well matched with 10 @ 3.304v, 2 @ 3.303, 2 @ 3.305, 1 @ 3.302 and 1 @ 3.307.
After Paralleling them all up to create a whopping 4480Ah bank @ 3.2v I proceeded to Top end balance them - Firstly up to 3.4v, which took around 5 days and then to 3.5v and then 3.6v which I did over several hours - At 3.6v every one of the cells is reading 3.600v.
I am pretty happy with everything so far and will update as things progress.