J series · 12V
GK-J1212C
Portable jump starter
- 3000APeak
- 20,000mAhCapacity
- Gasoline ≤9.0L / Diesel ≤7.0LWhat it can start
FCCCERoHSUL2743SGS12 months

Cranking1500A
Energy74Wh
Dimensions220.22×121.41×59.94mm
Warranty12 months
Full specifications
Battery & starting
- Capacity
- 20,000mAh
- Energy
- 74Wh
- Pack voltage
- 4S · 12V
- Cranking current
- 1500A
- Peak current
- 3000A
Ports & charging
- Type-C
- PD100W TWO-WAY
- USB-A
- QCI18W
- Fast charge
- QC18W / PD100W
Physical & environment
- Dimensions
- 220.22×121.41×59.94mm
- Jumper cable
- Intelligent Jumper Cable
- Light
- Flashlight / SOS / Strobe / Warning
What it can start
Engine sizeGasoline ≤9.0L / Diesel ≤7.0L
LightFlashlight / SOS / Strobe / Warning
Factory capabilities
OEMOEM / ODM
Custom logo, gift box, manual language and plug standard. Ask us for MOQ and sample lead time.
DOCCertification files
FCC / CE / RoHS / UL2743 / SGS reports available for customs and retail listing.
QCQuality system
ISO9001 certified in 2021; SGS factory audit meets the UL2743 production standard.
SMPSamples
Sample orders accepted for evaluation before bulk. Ask for quantity and freight.
Compare in series
CurrentGK-J1212C3000A · 20,000mAh
GK-J1205P3000A · 20,000mAhGK-J12022400A · 16,000mAhGK-J1211P2400A · 16,000mAhOnly three numbers compared; full specs on each model page
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