GOOLOO GP4000 4000A Jump Starter
- 4000 A peak, all gas engines, diesel up to 10.0L
- 24000 mAh lithium polymer pack
- Over 60 jump starts per full charge
- -4 F to 140 F operating range
- Dual USB plus USB-C 5V/3A port
- Wall charger not included
- 18 month warranty, lifetime tech support
- 8.97 x 3.92 x 1.49 in body
Updated 3 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A strong jump pack with a boost mode for nearly flat batteries and a storage case in the box. Bring your own wall adapter, since only a USB to Type-C cable is included for recharging.
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ASIN: B0D2HH3BDNModel: GP4000
Overview
Clamping onto a dead battery and pressing the BOOST button lets the GOOLOO jump starter start gas and diesel engines even when battery voltage is very low. A lithium pack inside also charges phones and tablets through its USB ports, and a flashlight helps at night.
High peak current and electronics rated for extreme cold suit trucks, RVs and large diesels through harsh winters. You need a USB wall adapter to recharge it, and the pack wants a top-up every few months when idle.
Who it's for
Drivers of pickups, RVs, tractors and diesel vans in cold climates get starting power and a storage case for the cab. People who forget maintenance charges should note the pack needs charging every few months while idle.
Pros and cons
- BOOST button for very low voltage
- Ten built-in protections against sparks
- Durable all-metal clamps
- Rubber corners for drop resistance
- Needs charging every few months when idle
- Weight not listed
- Recharging needs your own USB adapter
Performance notes
Engine size, cold temperature and the state of the vehicle battery govern whether it starts on the first try. The BOOST button forces a restart even when battery voltage is extremely low, and the smart chip manages delivery across a wide temperature range. Storing it charged matters, since a long idle period drains the pack.
Specifications
| Brand | GOOLOO |
|---|---|
| Model | GP4000 |
Frequently asked questions
Does the GOOLOO GP4000 work with snowmobiles or boats?
The bullets list snowmobiles and yachts among compatible 12v vehicles, along with ATVs, motorcycles, pickup trucks, RVs, tractors and cargo vans.
How do I recharge the GOOLOO GP4000?
Through the USB Type-C port (5V/3A) with the included USB to Type-C cable and your own USB wall adapter.
What if the GOOLOO GP4000 will not start a very dead battery?
Press the BOOST button. The bullets say it forces a restart even when battery voltage is extremely low.
How often should I charge the GOOLOO GP4000 in storage?
The listing advises charging it every 2-3 months if it has been idle for an extended period.