Using an E-Bike charger to charge my large 48V battery?

I just bought a small grid-charger for 48V lithium batteries. I don't use it much but had two occasions where I just wanted to charge the battery a tiny bit... and couldn't do it as the sun was already down. I looked around and could not find anything to produce a voltage high enough to charge the battery. That had to change! The charger delivers 5A, well that's what it claims. After a bit of testing, I found that it cranks just under 4A. Anyways, good enough for me if I need an 'emergency charger'. Link is on my website here: https://off-grid-garage.com/batteries-3/ Please subscribe and join me on my journey of the Off-Grid Garage! For more information, please check out my website with links to all materials, devices and products: https://off-grid-garage.com EVE LF280 LiFePO4 cells 3.2V/280Ah: https://off-grid-garage.com/batteries/ Solar, Controllers, Inverters and accessories: https://off-grid-garage.com/solar/ Batteries, chargers and accessories: https://off-grid-garage.com/batteries-3/ Cables, inverters and electronics: https://off-grid-garage.com/electronics/ Tools, analysers and testers: https://off-grid-garage.com/equipment/