Skip to Content
CTEK Assist helps you with everyday questions for your 12v/24v or EV Chargers and includes product information, a product selector tool, troubleshooting, user manuals, compatible accessories and much more.
It draws on CTEK’s knowledge and documentation to point you in the right direction—fast.
CTEK Assist for RB 4000
How many starts on a single charge
The RB3000 will provide up to 30 starts, and the RB400 up to 45 starts, however big engines and cold temperatures affect this number.
We always recommend to recharge the booster efter use so it's ready until next time.