does it recharge with switch on or off??

Hello Dear Customers When you recharge the jump starter , it doesn't matter that the switch on or off , both is ok for recharging. Thank you ! Doris

Can this supply a constant 12v output to run a fridge/cooler for 5hours on a camping field trip ?

This is a cheap chinease device it doesn't do anything continuously but while it works yes it will do it as long as you don't load it to capacity.

I have received mine. How long to charge to 100% does not say in guide??

Hello , Dear Custoer it needs about 5 hours to charge to 100% . Thank you ! Doris

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Description

🚗⚡ Power up your ride and your life—jumpstart freedom in your pocket!

COMPACT READY - Lightweight, portable design fits in your glove box or travel bag—adventure-ready.
SMART LCD DISPLAY - Real-time battery status and input/output info at a glance.
JUMPSTART LIKE A PRO - Up to 30 jump starts per charge—never get stranded again.
POWER BANK ON THE GO - Charge your phone, tablet, or gadgets anywhere with dual smart USB outputs.
SAFETY FIRST ALWAYS - Multi-layer protection guards against overcharge, short circuit, and overheating.

The FlyHi Car Jump Starter delivers a powerful 800A peak current capable of jump-starting vehicles with engines up to 6.5L gas or 5.2L diesel, supporting up to 30 starts per charge. Featuring an 18000mAh battery, dual USB outputs for device charging, a smart LCD display for battery monitoring, and comprehensive safety protections, it’s a compact, portable essential for any driver or outdoor enthusiast.

Specifications

Manufacturer	FlyHi
Brand	FlyHi
Product Dimensions	17.53 x 9.14 x 4.32 cm; 630 g
Batteries	1 A batteries required.
Item model number	D12
Manufacturer part number	FH-D1201
Bulb type	LED
Special Features	800Amps Peak Current and 18000mAh High Capacity. Can Jump Start 6.5L Gas or 5.2L Diesel Engine. Also works as a portable power bank with Dual Smart USB outputs. Built-in Smart Protection. LCD Screen: indicates the chargers remaining battery power available and when to charge. LED Light with 3 selectable modes(high strobe and SOS). This should be an essential part of your car emergency safety kit for when you go camping, picnic, drive-in, outdoor adventure, off-road travel or anyplace else you go
Safety rating	CE / FCC / RoHs Certified
Amperage	800 Amps
Wattage	66.6 watts
Item Weight	630 g

Reviews

C**E

Started my completely flat and stone cold 1.9L Diesel

My car had been sitting for two weeks over Christmas and the battery had drained to the point nothing electrical worked. With this connected the engine started first time without any complaint.Just make sure you follow the instructions; I had to press a button to put it the unit into an emergency override mode. I suspect this was because my car battery was so flat it couldn't verify that the leads were connected properly.

7.01.2019

T**R

great device portable and does the job!

Looks well made and nice case - and works well. Originally thought it didn’t work (before I read instructions) however reseting the smart plug fixed my problem and started car with ompletely dead battery immediately. Device very light and seems well put together

30.01.2019

M**S

charge up and check before travelling

excellent product worked when abroard great value

10.09.2018

L**Y

Failed to work

Although fully charged, when connected to car battery terminals, green light failed to come on , followed troubleshooting instructions and pressed reset button but made no difference. Item did not work. Very disappointing

15.07.2018

T**T

Great bit of kit

Had this bought for me at Christmas as a present. It was used in action for the first time this morning in temperature of -3 on our works diesel van. I could no believe how well this worked, a must for any car owner to keep in your boot. The beauty of this is that you don't need to jump start off another vehicle. A really good bit of kit, thoroughly recommended.

27.02.2018

A**R

One Star

Bought for horse lorry 4.5 diesel. Doesnt work.

19.01.2018

R**8

Failed to start my 2.0 tdi golf

Very disapointed. I only have it for a couple of months and it didnt work. It was fully charged.

10.04.2019