Hopper Urban replacement battery

Long story but.........my friend died a few weeks ago and I've been tasked with selling on his Hopper Urban folding electric bike. I have a friend who wants to buy it but.........it hasnt been used for a few years and, try as we might, we cant find the battery! It was bought from Tesco years ago and so I'm a bit lost as to which bettery to buy to replace the missing one. It wasnt one of the "Frog" type - but I remember it was black and quite a slim rectangular shape that slid into the casing above the rear wheel. Fortunately I managed to find the key. Any experts out there have any idea which spec battery I should buy, and where to get it from.

Don't know if it's exactly the same but I replaced a tesco shopper battery and it fine

See here:

Tesco Link

Many thanks - I did follow the link but couldnt see any information on where to source a replacement. I did see the pic of the battery but that looks like a "Frog" type of battery. The one I am after is a slim rectangular shape.

Many thanks - I did follow the link but couldnt see any information on where to source a replacement. I did see the pic of the battery but that looks like a "Frog" type of battery. The one I am after is a slim rectangular shape.

Yes mine is the frog type I bought it from yose powe on e Bay may be worth checking with them if they can help you, and they ship from the UK.

Just wondering have you had a look to see if you might convert to using the frog battery mine was shipped complete with the mounting bracket i just put on the new bracket and the connections just plugged into the existing harness.

Maybe someone on here has experience and could help.

Ah. OK. Many thanks. I have tried someone on eBay (still waiting for a reply). Agreed, if it becomes insurmountable I might well go for the new mounting etc option. Thanks