Wickes cordless impact screwdriver and battery, no charger (Brookvale RG21)

Model CID180KL2 + battery
Battery model KD711-B180LI
Wickes no 150495
Slip chuck.
Purchased in 2019, the model has since been superseded.
I didn't open the box until earlier this year and found that the charger was missing and it was too late to return for refund. The battery is charged and I can demonstrate the driver works well.
I can't source the original replacement but have found a couple of units that might work if you are willing to take the risk, or this might be useful for spares. The battery alone is selling on ebay for £9:00.
Possible substitute charger:
https://www.ebay.co.uk/itm/134623153846?_trkparms=amclksrc%3DITM%26aid%3D11...