wheeliepete

The Powabyke lithium batteries i've come across have been a bit unusual,being assembled in a 10S3P config. with no BMS using Sanyo 2000mah cells. AFAIK they remained like this for many years of production, so must have been tested and passed as safe. There are those who refer to BMS's as "battery murder systems" and direct or bulk charge their battery packs. Have a look on ES for more info on this.

Torque sensor bottom bracket, it applies power to the motor depending on driving pressure on pedals.

A link to your battery may be of help to others if they are getting hard to find.

Not come across this issue before, I would advise you live with it if the battery is otherwise working/charging OK. BMB Battery sell a replacement BMS to fit the bottle case, but may not be a plug and play replacement. https://bmsbattery.com/home/1063-18291-lithium-bms-system-for-bottle-battery-with-5v-usb.html#/107-cells_in_series-10

Before you write off your charger, have you taken a voltage reading from the battery output?

Wisper is another UK company with very good CS, spares availablity and range of bikes worth a look.

Ebike vision Bosch batteries in the UK, bit pricey though:eek: https://www.allbatteries.co.uk/searchengine/result/?q=bosch+ebike Edit-not alot more than German site.

This image shows how the motor sits in a standard frame. This is how it is likely to sit on your frame, maybe a little higher. It's only the screw and clip in the way, the cable will pass through the gap.

So as not to mislead anyone, it may be a little premature to highly recommend someone/something until you have the battery back and have run it for a while to ensure it works as it should.

I've used strong neodymium magnets to hold the wires onto the nickel strip to charge strings of cells with good success. https://www.ebay.co.uk/itm/174130047036?_trkparms=ispr%3D1&hash=item288af5a83c:g:32wAAOSwWSJefb0W&amdata=enc%3AAQAGAAACoPYe5NmHp%252B2JMhMi7yxGiTJkPrKr5t53CooMSQt2orsSDAeS9EQtjPGVfKXTxF0%252BjpzXiQodu%252F5IZZxdOoGFTzddxZJYLZIg9KSljvBeWgNWzxuZSDiiW8nS0sjXow6TG14F0WZ%252FCc%252F044Tv3FEnxw1%252FugGYQveDba58iQiVvVn3P6shM74LbTrjNmHq22QmcMfvIRg8BANITHNwVLq9teFjlsKfInuPpGXzBAFeevbAc3Bppslbr0AZLUfV7rlTm44oAMqYYTSpYoSeN0u1cdJXsVoinVDytoPsFj0zs3pVuKAldpC%252FF9NcoGyk1EDGAn1pBNjAJchgYAed1HWpJDPZm%252FK3EN1gloUyNN7WtYEhfOou34xeSnqNSoIIzkVmE8GVHCc9hIuVC0vucqnIYSmDW0masmVqLlOTrBbM6bB91KGBjVjenQePMZh%252BUyseaxrGu2l3gsst9dv4qpNeJr4GwbpJcikpj56yE7cE%252B6Vk6T%252BUPCvfUs6o%252FpCEt4WVZbwWUNhSEKsCCv8addq9bBJ7EDFvSb0hmf7cdp336MdDV1k%252FnGOFdFH94%252FYk%252BpdF8ecIF%252FNNZGEenuuOO%252BdlhURhuekdSSFZxLXTtGMXDXKkBvcMjnlQOZKWoW9IZv3W%252BdXk%252BGGLyem3UoBHFiMEFsqrbPq42cI5L0UFP5LOxhRcWrJ1Vi4GunJxM08WofpRUHAEFSJ4F1ttKdi%252Bm1bCOUwS926cW680p7%252FYuvihb60tnNhVAaQkT7S9X4HbtI6aJyF%252BII7ifrFLgdlI6RtQv%252FW%252F2d%252ByQ7Qr4UAXswCpC5MiwKDrW1nYy7r9JDc3DSSeWKpAmPyYrUJLumn084HBSvPCt%252BSuWA0zBPuEPHnAoRrxhUmSoU5nD2V5PzJ%252B%252BQtr3Q%253D%253D%7Cclp%3A2334524%7Ctkp%3ABFBM6vHDsLxf

53.1v is low for a fully charged 48v battery, which could mean it's out of balance. You need a multi meter to read the charger and battery voltage, essential bit of kit for an ebike owner. https://www.ebay.co.uk/itm/363630370517?_trkparms=ispr%3D1&hash=item54aa0f1ed5:g:iP8AAOSwkINhm0Qu&amdata=enc%3AAQAGAAACoPYe5NmHp%252B2JMhMi7yxGiTJkPrKr5t53CooMSQt2orsS5%252FLJbfonbQUYd49AU1AJY7fiJpg%252Fqrnjp%252BVBqw4zX8NmBEl3Uvsut%252BdA3LoqzWcrRsyGnb4zy9oeOnQBJaxRg4K0eWRgZvcoOFsEs6zdEZTBSiEwvJl0nxV9v9BwxiFnv3zbn%252FQL2YIiKoymz9aMUJjWGfDXKyF%252Brj%252F%252FmoU%252BP3FW1ym1kUKw4wq4F61l9CM9QcSliqf6xB9Z77KBG8WyM2%252BVRxp3NzBhjgAiCh1tUMToGK2m6Ltgjom8rWFb0zAkGn1R5wxISoDrtWFLwYQ4oMWntoqerfLBbS%252F1Qjb8XfHRFg8pSPgTP992T7yCQYip7pnpXHBJoC3kbXi6LI0olXw9hDpvsllZDxkSAJ8%252FRwdmX3HDLqO9n6rVC%252FpL4vrSoqSRsRDuS8rUT0Z0zDd9F7UbpEMthL2CyjcPI25%252BmnLWmI5akZdrrXhpahEY0HRzr%252Bb2UZ1qIv57u3rSzlFkU78AhRPWbAFAC5d2upPYJuGDKOD%252BVUc0bqO8%252FZpVVX3f913uRKwGQlc%252FSROBf9viwSyl2LwS%252Fkpti4mlxXTWVjBh9dQEIF%252F5JtFwWSDSg2RDABYK7OkGmziP82XqqrCfYbvbAo3H1RuC9%252B5%252F52iU9%252BC%252BwRXrD14vzt04kMefa%252BW66ZgUATGB%252FyfIwjID%252Bj6xqXGo%252B6llLedIFVPg70GH964fRcRHdLrb%252Ft1IJZ7r2YtXwuMgH%252FmnxijKy%252B0ZbEhpISLLw986eh31GS5dXHtPnl6nZ6D1b3y7ZbfVPeNTyl%252FOdkx9UxvwkWW6kkcloS4E3xthzLHe6%252Bvey8jJ0QC7f25tTL%252B4%252Fr1tCvToOPUa1eEH3xk%252FAr7bYXUS%252FDMvBJhEVA%253D%253D%7Cclp%3A2334524%7Ctkp%3ABFBMmqDR5Llf

Sorry, my poor attempt at humour, I was referring to the box........I'll get my coat.

There's something fishy about this.........

I too would have happily grabbed this if closer to home and agree it's worth you putting a new battery on it to sell.

It's an LED display.

Any small, independent motorcycle shop will also be worth a try as your brakes are very similar to older petrol mopeds, pit bikes and small motorcycles. Both brakes prob. just need a full strip, cleaning and reassembling and the cables checked, an easy job for a motorcycle mechanic. They will sort your chain out at the same time.

I agree, Wisper offer a good spares supply for their old bikes going back 10 years or so, and even when parts become unavailable, the bikes are easily and fairly cheaply converted to run KT controllers and displays to keep them going. i've bought 3 back from the dead so far and never have a problem finding them a new deserving home.

You need to post a clear photo of the charging port on the battery for anyone to advise on a suitable charger.

The hole for the plug in the top of controller compartment under the battery is in the wrong place to match the silverfish case, hence needing to enlarge the hole. I've not done this myself as I recelled the original Wisper case with a 5S10P soft pack, but it's an option if you don't feel able to solder a pack into the old case.

I've just refurbed one of these for a friend of mine, great bike. The silverfish case will fit in the frame cradle, but you may find the male pins in the battery base plate will not line up, meaning you will need to modify the aluminium plate under the mount for it to fit. Depending on your skill level, the battery pack from a silverfish case will fit inside the Wisper case.

Don't forget this bike prob. weighs at least 3 times that of your 24v one before you load anything on it.

Ask E-rider for info about tyre pressures and chain replacement. You will need to remove the old indicator bulb to find which type you need.

Be careful though, there are several different case types that all look very similar and the bases are all different and don't interchange. If you already have a battery, post some photos of the top, bottom and sides of the case and base.

Well done Billy, knew we would get you there in the end. Enjoy your first proper ride on the bike. Hope the weather holds out for you.

As said, no need to charge after a short ride every time, you have a large capacity battery, but your bike will obviously use more power than a normal ebike due to weight and only running on throttle. I would go on 2 or 3 short rides of say 3-4 miles without charging, noting your combined mileage, then rest the battery for 30 mins, then take a voltage reading. This will help you judge your power consumption. Recharge when your down to around 47v.