Vida ITV506 Slim Power Bank for Heated Vest Jacket Gilet Scarf 2.1A 5V USB Battery Pack Fast Charge Portable Travel Charger for Mobile Phone Tablet PC Flight Watch USB-C with 3-Ports Output (Black)

Using this product to power a heated gilet, slimline to fit easily and comfortably in pocket. Charge lasts really well.Great product and good value for money

Neat product - works well - just slips into jacket pocket and keeps my phone on the go and heats my jacket if necessary

The power supply appears to be well made, very slim and lightweight. It charges up quite quickly although the duration of it’s output might be exaggerated but I am very pleased with it.

Arrived very quickly. This is a lovely slim, lightweight battery, very efficient, the charge has lasted me a few outings.

Handy decent power bank I bought to go in my partner's heated gilet. Charges easily and quickly and lasts for sufficient time needed when my partner wears her gilet. Good product.

Brilliant, great service great value, long lasting very pleased

Good battery charger for a phone maybe but as an aid to keeping an electric jacket warm, noI was only able to achieve 2 hours on lowest setting of the jacket as compared to another battery I own where I got 12 hours on low setting. The reason for this is that for any battery to be successful to keep a jacket warm, it has to be at least 7.4 output and 10,000ma - Im afraid this battery is only 5,000 and a 5 volt output, yes 5 volts is good but you need a high capacity battery to do the job - My disappointment comes from the fact that I purchased a heated jacket for my ex-partner and she needed a battery for it and so I bought her this one - its good for charging a phone

bought to use with heated waistcoat and works well lasting three hours on its highest setting and longer on lower settings.