Look up the engine size of the vehicle to match the jump starter model that best fits your needs. Green Keeper models are based on the vehicle engine size.
The starting current, often referred to as cranking amps or starting amps, is the maximum current that a starter motor draws from the vehicle's battery during the initial stages of starting the engine. It represents the electrical power required to turn the engine over and initiate combustion.
The starting current of Green Keeper jump starters:
Peak current, also known as peak amps or surge current, refers to the maximum current that a device, electrical component, or system experiences for a brief and instantaneous period. It is the highest level of current in a transient surge. It represents the maximum amount of electrical power that a jump starter can provide during the initial moments of starting a vehicle.
The error RC light will illuminate. With Reverse Polarity Protection, it is perfectly safe and there won't be any spakrs. However, jump starter won't deliver power unless the clamps are connected correctly to the vehicle battery.
Note: When using the override mode to force start dead battery, the Reverse Polarity Protection won't work anymore. Be extreamely careful not to connect the battery backwards to avoid severe damages.
Green Keeper offers warranty of 18 months from the date of purchase. Visit our Support Page to learn more about Warranty or find the User Manual to your specific jump starter model.
Green Keeper jump starters can be operated within the temperature range -4°F to 140°F (-20°C to 60°C). Green Keeper jump starter has smart safety protection that will prevent it from operating outside of this temperature range for your own safety.
Green Keeper jump starters should not be stored below -4ºF (-20ºC), and not exceed 140ºF (60ºC) for any reason. Storing jump starters outside of these ranges can cause damage to multiple crucial components of the jump starter. This applies to all Green Keeper models.
No. Boost should be recharged in temperatures between 32ºF to 122ºF (0ºC to 50ºC). Remove from heat source and allow the battery to cool down before recharging.
All Boost models can hold 70% of its rated capacity for up to one year. For optimal performance, we recommend charging the device at least every 4-6 months, after initial charge.
Green Keeperooster GK-J1201 can recharge all generations of smartphones on the market, as well as HD action cameras, tablets, music players, wireless speakers and more. Any devices that uses a Universal Serial Bus (USB) , will take a charge from Booster GK-J1201.
Click here to learn more about charging USB devices using Green Keeper Booster GK-J1201.
Booster GK-J1201 can only jump start 12V lead acid batteries. This includes wet, gel, maintenance free, enhanced flooded battery, and absorbent glass mat batteries.
Green Keeper GK-J1201 can only jump start 12V lead acid batteries. This includes wet, gel, maintenance free, enhanced flooded battery, and absorbent glass mat batteries.
Yes. Green Keeper GK-J1201 can jump start any vehicle with a 12V lead acid battery like a car, boat, motorcycle, ATV, lawn mower, RV, tractor, truck and more.
Yes. All Green Keeper models are FAA compliant and can be taken on a plane, however they have to be in your carry-on. No-Lithium batteries are allowed to be checked in luggage. All Green Keeper models are under 100Wh which is the limit set by the FAA. For more additional information, or for current updates, please see the link below to the FAA guidelines. We also recommend contacting the airlines you are flying to see if they have any additional restrictions.
Yes. Boost is USB-C rechargeable, so it’s not directly tied to the electrical service of your country (i.e. 120V or 220V). Use an AC to USB adapter or 12V to USB adapter to charge your device. A 12V USB Car Charger will work in any country or vehicle with a 12V port. The Booster GK-J1202, Master serie have an XGC input, allowing you to charge the units directly via 12V port for faster charging.
No. The 12V ports in a car are current limited at 8 Amps. Boost delivers a maximum range of 400A to 20000A, depending on your model, which would cause severe damage to the port. However, there is no way to connect this product to the 12V port, so there is no risk of this happening.
No. While Green Keeper can jump start your car battery it is not a battery charger. If you need to charge your car battery we recommend using 6V or 12V batteries lead acid, AGM or Lithium battery charger.
If Green Keeper GK-J1201 is not detecting the battery it is possible the voltage is too low to detect. Green Keeper jump starter is designed to jump start 12-volt lead-acid batteries down to 2-volts. If your battery is below 2-volts, the Boost LED will be "Off". This is an indication that GK-J1201 can not detect a battery. If you need to jump start a battery below 2-volts there is a Manual Override feature, which allows you to force "On" the jump start function.
The provided Micro USB cable is 48" (1 m) in length. Boost charges with a standard Micro USB port, so if a longer or short cable is prefered then the provided cable can be replaced with any compatible Micro USB cable.
There isn't a direct Boost-to-SAE adapter since the SAE cable isn't rated for the output of the Boost. You can install the GBC007 eyelet cable alongside the SAE cable you have on your battery, then the GB20, GB40, or GB50 directly into the GBC007 when jump-starting. GBC007 has an included X-Connect adapter which can be plugged into the cable and plug a compatible NOCO Genius Battery Charger into the adapter for charging and maintenance.
Green Keeper does not individually sell the USB charging cable like the one provided with the unit. Green Keeper Jump Starters can be charged using any standard Micro USB cable like the ones many smartphones and tablets use.
Unfortunately, there are no extension cables available for the clamps on Green Keeper products as extending the cables would reduce the starting power they produce. If your positive and negative posts are too far away from each other, You can also connect to a negative ground on the vehicle chassis rather than the negative post.
We always recommend checking in with your local laws, and regulations for proper disposal of your Lithium battery products, like Boost. If you live in the USA or Canada, you can follow this link to see where to drop off the Lithium product for recycling in your area: http://www.call2recycle.org/
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