PVperson
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- Dec 6, 2023
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- MG5 Exclusive
I know this forum is more people using their MG's, rather than taking them apart/rebuilding them, but here goes.
I bought what was possibly at the time the cheapest whole MG5 cat N (damaged, non-structural) in Oct 2023, for £5400, and paid £500 for (almost) all the parts to repair the front end, e.g. bumper, 1 wing, crash beam, both rads, bonnet, 1 light (we'll come to that later!) top panel, motor cover and stiffener (which I left out)
As it was a 52.5kWh, I also bought the battery (from the same breaker in Essex) for £2500, which was cheap at the time.
The main problem with the battery is moving it around/storing it, as it weighs ~350kg and you need at least a pallet truck, and fork lift to get it out of a van!
It was sitting on my friends' driveway for a few months, until he needed to repaint the front of the house, so I decided to dive into it. I had previously spoken t a Lithuanian chap in Salford who upgrades/changes the batteries, who gave me some advice. Due to CAN issues, addressing etc., you need to change the 6 modules and their local BMS boxes, rather than a straight swap.
So, armed with a 7mm socket on a battery drill, I removed the 70+ bolts, the black steel lid lifted off fairly easily, and you see this:-
Then, removing the orange terminal covers, you can unbolt all the busbars, and then the 16s modules themselves (6x16s = 96s, 350.4V) Lithium-ion/NMC are usually nom. 3.65V/cell, charging to 4.20V or 4.15V/cell. Once removed, the modules can be moved by an able-bodied man (or 2!) as they weigh 50kg, the aluminium box ~35kg, lid, busbars and bolts another ~15kg. If you have the "donor battery" you can now swap the modules and 6 BMS black boxes, the main BMS will then "learn" the new capacity of the battery, as it charges and discharges. You've now increased your range ~80km!
FYI: the 52.56kWh battery uses 150Ah cells, the 61.1 uses 174Ah, So, if in the future CATL bring out a fff 200Ah module, it'll mean a 70kWh MG5 with a range approaching 300miles/480km!!"
[ Moderator: Inserted the image where referenced. ]
I bought what was possibly at the time the cheapest whole MG5 cat N (damaged, non-structural) in Oct 2023, for £5400, and paid £500 for (almost) all the parts to repair the front end, e.g. bumper, 1 wing, crash beam, both rads, bonnet, 1 light (we'll come to that later!) top panel, motor cover and stiffener (which I left out)
As it was a 52.5kWh, I also bought the battery (from the same breaker in Essex) for £2500, which was cheap at the time.
The main problem with the battery is moving it around/storing it, as it weighs ~350kg and you need at least a pallet truck, and fork lift to get it out of a van!
It was sitting on my friends' driveway for a few months, until he needed to repaint the front of the house, so I decided to dive into it. I had previously spoken t a Lithuanian chap in Salford who upgrades/changes the batteries, who gave me some advice. Due to CAN issues, addressing etc., you need to change the 6 modules and their local BMS boxes, rather than a straight swap.
So, armed with a 7mm socket on a battery drill, I removed the 70+ bolts, the black steel lid lifted off fairly easily, and you see this:-
Then, removing the orange terminal covers, you can unbolt all the busbars, and then the 16s modules themselves (6x16s = 96s, 350.4V) Lithium-ion/NMC are usually nom. 3.65V/cell, charging to 4.20V or 4.15V/cell. Once removed, the modules can be moved by an able-bodied man (or 2!) as they weigh 50kg, the aluminium box ~35kg, lid, busbars and bolts another ~15kg. If you have the "donor battery" you can now swap the modules and 6 BMS black boxes, the main BMS will then "learn" the new capacity of the battery, as it charges and discharges. You've now increased your range ~80km!
FYI: the 52.56kWh battery uses 150Ah cells, the 61.1 uses 174Ah, So, if in the future CATL bring out a fff 200Ah module, it'll mean a 70kWh MG5 with a range approaching 300miles/480km!!"
[ Moderator: Inserted the image where referenced. ]
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