Electric with rechargeable battery
Electric vacuum lifters start the pump at the push of a button and maintain the vacuum automatically. This is convenient on site and allows one-handed working once the device is attached.
The disadvantages are the weight of the battery, the dependence on charging infrastructure and the higher price. In cold conditions, battery performance drops, which shortens runtime.
Manual, without power
Manual vacuum lifters create the vacuum with a hand pump or a lever. They are lighter, cheaper, can be stored and work without a power supply.
You need to check the vacuum yourself and pump it up again if necessary. For short distances and occasional use, this is not a problem.
Decision guide
Battery life
The runtime depends heavily on the pump. Models with automatic re-suction only switch on when the pressure drops, saving energy. Expect many small pump strokes rather than continuous operation.
A second battery is advisable for regular use. If you only buy a device with a built-in battery, you should know the charging time.
This guide is editorial and general. For safety questions the manufacturer datasheet applies.