The CTEK RB 4000 is a portable lithium battery booster and jump starter that delivers up to 4000A of peak current for 12V vehicles. It includes a built-in flashlight and is designed for safe, repeated jump starts without a donor vehicle.
Specifications
- Peak current: 4000A
- System voltage: 12V
- Battery type: lithium
- Battery capacity: 88.8Wh
- Built-in flashlight
- Part number: 40-624
FAQ
What is the peak current of the CTEK RB 4000?
It delivers up to 4000A of peak current for 12V starting.
Does the RB 4000 have a built-in light?
Yes, it has an integrated flashlight.
What battery does the RB 4000 use?
It uses a lithium battery with an 88.8Wh capacity.
Can it jump start without another vehicle?
Yes. It is a self-contained portable booster, so it does not need a donor vehicle.

