SIP 03973 Professional Booster 802 Li

Retail Price: £221.30
You save: 43%
Our Price: £126.99


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  • Description
  • Reviews
  • Delivery & Returns

The 802Li is capable of charging petrol and diesel vehicles, as well as household electronic and portable devices. It achieves this through 2 USB outputs and a 12v DC output socket. Lithium-Ion (LiFePO4) 20Ah battery with 800amp peak rate superior stability and higher cycle life than most conventional or Lithium batteries.

  • Super powerful, yet compact - can fit in a car glovebox
  • Suitable for up to 5 Litre petrol / 3.5 Litre diesel engines
  • 2x USB (5v) outputs - safely charge various electronics
  • 12v DC output style socket - for use with 12v equipment
  • LCD status display shows battery charge & functions
  • Test function for testing alternator and battery status
  • Integrated LED work lights
  • Laptop charging function

Technical Description:

  • Internal Battery 20,000mAh LiFePO4
  • Boost Voltage 12v
  • Start Current 500A
  • Peak Current 800A
  • Battery Life 2000 cycles
  • Auxillary Outputs 2x USB: 5v, 1x Laptop: 19v, 1x 12v
  • Working Temperature -20°C to 40°C
  • AC Charger (Input) 230v ~ 50Hz
  • AC Charger (Output) 15v DC, 1.0A
  • Net Weight 1.12kg

Packaged Dimensions 75 x 145 x 225mm, Comes complete with: laptop adaptor set, AC charger, in-car charger, jump cable with heavy duty connector, test input cable, and high quality carry case with adjustable strap. 

Additional Information

For any technical enquiries regarding this item, please use the "Ask a Question" button or phone us on (01473) 820505 during office hours.

Product Details

  • Manufactured by: SIP
  • Shipping Weight: 2Kgs
  • Our Code: SIP03973
  • MPN: 03973
  • EAN: 5012713039739

Manufactures Information


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Just Briefly:

We supply to the UK only.

Priority will be given to orders received before 12:00noon for a same day dispatch. (Excludes: Saturdays, Sundays and ALL Bank Holidays). To avoid disappointment, orders must be received by 12:00pm to achieve a FedEx Next Working Day service.

We use FedEx Next Working Day, FedEx (Up to) 3 Day, Royal Mail 1st & 2nd Class

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See below for our cheapest postage prices delivered to mainland England, Wales and southern Scotland destinations only. For all other areas, please add item to cart and enter a destination post code for an accurate price. Premium next working day services are also available.

Order Value Postage & Packing
Up to £49.99 £2.75
£50.00 and Over Free


If you do not require the product you have purchased please advise us as soon as possible, return it to us in its original packaging and un-used condition within 30 days of receipt and we will issue a refund. Sorry, we do not pay return postage costs, unless the item is faulty or supplied incorrectly.

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Retail Price: £221.30
You save: 43%
Our Price: £126.99

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