A Real life saver. Roypow J12 is a 4-in-1 solution: a jump starter, a power bank, a flashlight and even a compass. It is easy to jump start a dead battery in seconds due to the powerful battery with 400 Amp Peak Output Current. you can jump start a car, boat, truck, RV, motorcycle, ATV, lawn mower and more. Say goodbye to tow truck. A smart gadget equipped with Roypow AI charging technology With exclusive circuit design, the gadget is equipped with the latest Roypow AI charging technology. It can intelligently identify your devices and provide the fastest charging way. Ultra--safe design I. With premium cell and exclusive Multi-Protection circuit, nothing happens if you touch the clamps together or hook up to a battery in reverse. Anti surge current backfeed, under voltage protection, over current protection, over charge protection. II. The housing made of UL94 V-0 (the highest fire proof grade) fire proof material makes it ultra-safe in usage or storage. III. Heavy duty pure copper clamps with protection design also ensure a more secure operation. Details make perfect I. Ergonomic design: Anti-skid design and moderate size comply with the ergonomic design, more aesthetic and useful. II. Auto power off mode: Once fully charing the devices or in no-load status, the jump-starter will shut off automatically to prevent damage to electronic devices and avoid loss of power. III. Premium top brand LED Chips with ultra-bright LED flashlight. Global Famous Warranty At Roypow, we believe in our products. Therefore, we back them all with an 18-month warranty and provide friendly, easy-to-reach free Lifetime Technical Support also.
S**E
Great Buy
This is a great bit of kit. I have an ageing estate car which I use rarely. As a result the battery dies. This small device jump starts it back to life with no problems. The Roy Power easy to charge, use and can charge other devices. It also features a torch. One word of caution; it can lose its own power over a period of time so it's as well to top it up every few months.
N**E
Hard to believe something this small can start a car engine!
Will happily start even a big diesel engine, had to use it a few times due to dodgy car battery, started the car first time every time. Amazing when you consider how small it is and the fact it can be charged using a USB cable!
E**R
Recommended
Excellent works as expected well packaged nice case.
T**.
What a useful piece of kit
What a useful piece of kit, I have had to use it twice to start my diesel car when the battery was dead and its turned the engine over as sweet as a nut. I am really impressed.
M**.
Do not buy
Did nothing for my 2.4L diesel engine. Barely lit up the dashboard when ignition key was turned
D**N
A Useful Gadget
This is a well made gadget that is easy to use and has a number of uses. I bought it to jump start my car battery and was pleased with how simple it was to charge up and fix on. It is also small so can balance easily when you have the bonnet open. The instructions are clear and I like the fact it has a bright colour.
M**N
Great
Great could be a life saver
N**1
One Star
Did nothing for my 3L diesel. Returned the item after multiple attempts and finally giving up.
Trustpilot
2 months ago
2 months ago
