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⚡ Jumpstart your journey, power your life — be the hero on every road!
The Clarke JSM1200 is a compact, award-winning 1200A lithium polymer jumpstarter designed for professional-grade reliability. It delivers up to 20 jumpstarts per charge, supports petrol engines up to 5.5L and diesel up to 3L, and features dual USB outputs with a versatile 3-way adapter. Equipped with smart LED indicators and multi-mode emergency lighting, it’s the ultimate all-in-one power solution for millennial managers who demand readiness and connectivity on the move.
| ASIN | B0CRDCHCWQ |
| Amperage | 1200 Amps |
| Battery Capacity | 10000 Milliamp Hours |
| Battery capacity | 10000 Milliamp Hours |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | 44,477 in Automotive ( See Top 100 in Automotive ) 179 in Car Battery Jump Starters |
| Brand | Clarke International |
| Brand Name | Clarke International |
| Compatible with Vehicle Type | Passenger Car |
| Customer Reviews | 4.5 out of 5 stars 43 Reviews |
| Included Components | Includes USB-C to USB-A cable with car adaptor |
| Item Type Name | Jumpstart |
| Item Weight | 300 Grams |
| Item weight | 300 Grams |
| Manufacturer | Clarke International |
| Manufacturer Part Number | 6239025 |
| Manufacturer Warranty Description | 1 year |
| Model Number | 6239025 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Peak Output Current | 1200 Amps |
| Unit Count | 1.0 count |
| Vehicle service type | Passenger Car |
| Voltage | 12 Volts (AC) |
| battery-cell-composition | Lithium Polymer |
M**S
Starts a dead Ford Mondeo!
Wow, excellent piece of equipment. I have a 2007 ford Mondeo 1.8 diesel. The battery was so flat that the central locking didn't even work. Thinking that this little jump pack had little chance of starting the car I proceeded anyway as I had little to loose. I follow the instructions that are straightforward to understand and to my surprise the dash lit up and the glow plug symbol stayed on for the correct amount of time. Once the glow plugs were ready I turned over the engine, it fired immediately and as if a new battery was fitted to the car. Knowing what it takes to turn over a diesel engine, I must say that this unit is very powerful. I highly recommend this little jump start pack. In addition delivery was next day, so excellent service too.
D**A
Brilliant Machine.
Works well lots of power, had to read instructions to realise green light needs to be flashing on attachment lead before it is ready, very happy now great item.
M**B
Goos but alarms every time.
Nice jumper pack, comes with enough charge to jump my rav. Gives an alarm every time I use it for over temperature despite my vehicle being well within the units capacity. Annoying more than anything else but works.
D**N
Charger
Fantastic piece of kit
T**O
Solid & reliable
Feels a quality product. Only used once in anger but on a 2.5L diesel van which it started instantly.
A**R
Good in a pinch
Really good. Used it twice already. Recharged & ready to go from the van 12 v socket. (You'll need a Charger to plug into the socket). Like any power bank you'll have to top it up every 3 months.
M**Y
Excellent for starting cars, motorcycles / lawn mowers etc
Excellent for starting cars, motorcycles / lawn mowers etc. Holds charge very well. Discharges surprisingly quickly when charging devices (cameras, lights etc.) 2 gripes: Why no USB-C output and why, oh why, do we have to have the comic-book style sticker on the casing? It makes a professional piece of kit look like a child's toy. Yo can't remove t without damaging the casing.
P**Y
Worked first time straight out of the box.
After a very poor experience with a YABER device (don't bother), this item was top rated by What Car. It worked first time straight out of the box. As serendipity would have it, the delivery arrived 20 minutes after the car had broken down with a flat battery. So, with no opportunity to pre-charge, the device was hooked up following the comprehensive instructions and the car started first time. FYI the screen on the device read 81% charge. This is the one to buy - don't waste your money on any other.
R**A
Powerbank
Starkes Teil, TOP Qualität!
Trustpilot
1 week ago
3 weeks ago