Box has been opened, device appears unused and is complete with original box and accessories.

Amazon price - £79

Details from the manufacturer:

• Do more with Genius - Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, leisure, deep-cycle and motorbike batteries, including flooded, gel, AGM, EFB, SLA, VRLA, start-stop and maintenance-free, plus lithium-ion (lifepo4) batteries.
• Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
• Charge flat batteries - Charges dead batteries as low as 1-volt. Or use the all-new Force Mode that allows you to take control and manually begin charging dead batteries down to zero volts.
• Condition your battery - An advanced battery repair and conditioner mode uses slow pulse reconditioner technology to detect battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
• Beyond maintenance - It's not just a trickle charger, it's an advanced battery charger maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
• Compatible with all petrol and diesel vehicles - Charge and maintain cars, motorbikes, motorcycles, scooters, mopeds, lawnmowers, ATVs, quads, tractors, trucks, caravans, campervans, motorhomes, vans, boats, leisure vehicles, and more.