Onboard chargers must cope with demanding environments
The power from the built-in charger is usually more compact than the one from stationary chargers. The reason for this is simple, since the charger will be transported "on board", it needs to be compact and perfectly adapted to the vehicle. Onboard chargers have been found in electric cars for a long time, but as the number of electric forklifts, commercial vehicles, wheel loaders, AGVs, cleaning machines, etc. grows, so does the need for reliable onboard chargers that can withstand a lot.
Vibrations, shocks, dirt, dust and varying temperatures. An onboard charger needs to handle everything from a cold icy morning outdoors with -30 ° C to a warm sunny day with a machine working at full power at +55 ° C.