Just wondering if there is a way to charge firstly, from. 25amp DCDC Charger, a 100amp lithium, when thats a 100% charged, go to a 50amp lithium. Maybe via a VSR
I currently have the 50 amp slim lithium, but will be replacing it with the 100amp slim lithium, but wouldnt mind keeping to 50 as a back up and just keep it charged up in case.
Our setup has a now 11 year old 300Ah and 2 year old 280Ah LiFePO4 batteries permanently paralleled.
Both follow SOC within 1 or 2%. No issues so far and I don't expect any.
Thanks everyone, instead of buying the 100amp lithium slim, I might just buy another 50amp slim lithium, a cheaper option as 100amp in the car is enough
And then just run 2x50amp lithiums in parallel
The iTechworld slim batteries dont have normal battery terminals.. each has Anderson plugs, which makes it easy to go with one cable and connectors from one to the other one.
When I look at the diagrams, it mentions to run the positive from battery and the earth from the other is that really necessary and does it really matter which battery I run the loads from.my thought is it wouldnt matter and that I can use the Anderson plug lead from one to the other for the parallel..
The iTechworld slim batteries dont have normal battery terminals.. each has Anderson plugs, which makes it easy to go with one cable and connectors from one to the other one.
When I look at the diagrams, it mentions to run the positive from battery and the earth from the other is that really necessary and does it really matter which battery I run the loads from.my thought is it wouldnt matter and that I can use the Anderson plug lead from one to the other for the parallel..
Simple solution.
As above, connect one battery to the other using an Anderson connector as you have stated. Buy yourself a a 2 into 1 Anderson connector as in the photo below. Remove either the positive or negative cable out of the single end of the 2 to 1 and insert it into anther Anderson connector. The two Anderson connectors with only one terminal connector then go into the two batteries.
The easiest way I have found to remove the connected pins from the connector is to place the connector on a solid ground surface, stand on the connector and then with a fine screwdriver press down on the retention spring tab and pull on the cable with your other hand. The terminal will move back far enough to be released by the pin but then sometimes will not fully come out. Simply pick it up and give it a tug to pull it apart.
-- Edited by TimTim on Thursday 6th of March 2025 10:29:24 AM
-- Edited by TimTim on Thursday 6th of March 2025 10:38:45 AM
