CTEK RB 4000
The RB 4000 booster gives you instant power to start vehicles with dead 12V vehicle batteries up to 45 times, before needing a recharge. Packed with safety features, additional USB charging ports and a built-in flashlight, it’s as versatile as it is reliable. Powerful, compact and ready to go, it ensures nothing gets in the way of life’s journeys.
- Robust Swedish-inspired design for dependable performance.
- Charges phones, tablets and other electronics through built-in USB-A and USB-C ports.
- Comes with clamps, storage bag and user guide.
- Ergonomic design with intuitive LED indicators.
- 2-year warranty.
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InputUSB-C PD 30W
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Output12V, USB-A QC3.0, USB-C PD30W
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Battery chemistryLead acid
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Battery types12 V:; WET; MF; Ca/Ca; AGM; EFB; GEL
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Battery voltage12 V
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Ambient storage temperature32°F to 131°F
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Ambient operating temperature-4°F to 131°F for output
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CoolingNatural convection
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Start voltage2.5 V
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ComplianceUL2743; IEC 62368-1; IEC 60335-2-29
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Degree of protectionIP65
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Dimensions (L x W x H)9.4094 x 4.2126 x 1.5748 in
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User interfaceDisplay
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Net weight (unit with cables)2.6676 +/- 0.0022lbs
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Detachable starting cable length output9.84"
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Internal battery capacity6000mAh, 14.8V, 88.8Wh
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Internal battery cell chemistryPolymer Lithium-Ion
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Internal battery cell typePouch Cell
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Internal battery weight1.3448 lbs
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Internal battery charge temperature0˚C to +55˚C
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Internal battery discharge temperature-20 ˚C to +55 ˚C
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Mains adapter cable typeUSB-C
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Mains Adapter Cable Length3,28 ft
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Fast Charging Time3,5h
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Battery peak current4000A / 45 starts
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Maximum Cranking Current2060 A