Wallen Power 【UK WAREHOSUE】 36V 48V 52V 15AH 20AH E-Bike Battery Waterproof PVC for 1800W 1500W 1000W 700W 500W Motor Bike - Lithium ion Battery Pack with BMS Protection

I was trying my best not to fall for some sort of scam/cheap battery for hundreds of pounds. Took the decision with this 48V 20Ah battery for my Bafang 750W folding mountain bike. Battery seems really solid and actually seems waterproof on receipt. So far the battery has performed great, seems to be a really good combo for this Bafang 750w setup. Made my own custom battery box to fit it into the frame as well as possible. Nice and slim too. I think i could do 20 miles, no assist, at 20-24mph easily. Possibly 50 miles now with a moderate assist at 10mph. Really pleased with my purchase.

Bought the 36v15AH. Used for over 500 miles now. Can confirm this is real 15AH. I think the cells are chineze not LG or Samsung, after 500 miles I noticed a very small degradation of maybe 2 miles range drop. Will take me trottle only for about 24 to 28 miles. Used to be 28 to 30. Still more than I need. Over all I am super happy with the battery and would definitely buy again if needed. Will probably upgrade the bike before this battery needs replacing

Did a throttle only range test on a 350w ebike. Fairly cold day 6c with slight wind riding on mostly gravel and dirt bike tracks with a few medium hills. Total weight including myself, the bike and battery (+ original battery still fitted) was 115kg. Got 16miles with 1 bar left. Had i kept going to completely drain it I rekon it would get 17-18 miles. This is near worst case scenario which is quite outstanding and indeed a solid 15ah battery for the money. With peddle assist and better conditions no doubt this battery could go 50+ miles.

I don't harbour much importance to flash gear when it comes to engine power production. So I bought this battery pack. Works a treat. Good purchase, stick it in Water proof bag on pannier, good as gold!

Best battery pack ever!

Battery has worked well for over a month so far. Charger is very nice, quiet with no fan or open vents but does not get particularly hot.Update after 3 months: battery only holds 60% of original capacity. Repeated attempts to get warranty replacement were rejected despite extensive data showing the problem. Avoid this company.

Bought a 52v 20Ah for my 48v bike.Well packaged, thoughtfully included male Xt60 fly cable, works well with my 3 year old electric scooter.Time will tell if the battery is good enough.

Delivery was really quick, well packaged,