Mini 12V car jump starter 400A
Anyone sourcing emergency jump packs learns this split in customer preference: some buyers want the all-in-one convenience of a jump starter plus tyre inflator, and others just want a simple, lean, reliable booster without extra modules that add bulk and complexity. That is exactly where the JS-A1 fits. This ultra-compact 12V jump starter is built for buyers who only need to reliably fire a dead gasoline engine. It is light enough to tuck away in the glovebox, door pocket or under the seat, with peak current up to 400A-plenty of power for standard passenger cars and SUVs. If you are a distributor stocking emergency roadside kits for daily commuters, this is your lean, low-failure SKU, stripped of unused air pump hardware.
Spec note for buyers: Peak current is instantaneous surge, not sustained cranking current. Designed for 12V petrol passenger vehicles.
Products Description
- Ultra-compact footprint
At just 1858937mm, this is one of the smallest jump starters we make. It slips easily into a glove compartment, a side door pocket, or under the seat. You won't even know it's there until you need it.
- Simple, reliable power
Delivering 300A or 400A (depending on the battery option), it easily cranks over 12V gasoline engines. It doesn't have an air pump to drain the battery, meaning all the stored energy is dedicated to getting your car started.
- Intelligent safety clamps
The jumper cables are equipped with smart battery clamps that feature reverse polarity protection. If you accidentally connect the red clamp to the negative terminal, the unit will beep and refuse to send power, preventing damage to your car's ECU.
- Clear status indicators
The LED display shows the battery level and voltage, so you can check the unit's health before a long road trip. It also includes a built-in LED flashlight for nighttime emergencies.
- Ready when you are
The battery holds its charge well and supports 15-30 jumps per full charge. With a Type-C charging port, you can top it up using the same cable as your phone.
Specification
| Item | Specification |
|---|---|
| Model | JS-A1 |
| Battery Capacity | 6000 mAh / 7200 mAh |
| Full Charging Time | 3–4 hours |
| Rated Cycle Life | 1000 cycles (standard DOD) |
| Extra Air Compressor | Not equipped (pure jump starter only) |
| Peak Starting Current | 300 A / 400 A (instantaneous surge) |
| Overall Dimensions | 185 × 89 × 37 mm |
| Approx. Jump Starts Per Full Charge | 15 ~ 30 times |
| Built-in Protection | Reverse polarity, short-circuit, over-charge, over-discharge, overheat protection |
| Compliance | FCC, CE, RoHS, UN38.3, MSDS documentation available |
| Input Port | Type‑C charging |
FAQ
Q: Can it start a large truck or diesel engine?
A: No. With 300A/400A peak instantaneous current, it is engineered for standard 12V passenger cars, compact SUVs and motorcycles. For heavy diesel trucks, refer to our JSP-A3 500A peak model.
Q: Does it have an air pump?
A: No, the JS-A1 is a dedicated pure jump starter. If you need an all-in-one unit with tyre inflator, please review our JSP-A3 model.
Q: How often should I charge it?
A: Thanks to stable lithium cells with low self-discharge and 1000-cycle rating, routine top-up once every 3–6 months is enough for standby storage. The LED display lets you verify remaining power quickly.
Q: How does cold weather affect starting performance?
A: Lithium cell output will drop at sub-zero temperatures. It works for typical winter passenger-car cold starts, but performance will degrade in extreme arctic conditions.
Q: Can we get OEM branding and neutral bulk packaging for distribution?
A: Yes, we support custom logo, custom packaging and bulk neutral shipments for auto parts retailers and distributors. Submit your branding spec for quotation.
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