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    Electric Bike Videos

    Want a look at a new LIFEPO4 battery that is not made with duct tape and a 5 amp charger alternative :eek: YouTube - lifepo4 battery fitted to my cyclone electric bike
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    Alternative to Ping Charger

    Lifepo4 - charging I also had a DOA charger from China, though not from PING. After some reserch I have done the following:- Any lifepo4 with full BMS just needs a less than 5amp charger as the BMS shuts off each fully charged cell. You just need to work out the cell number and set the...
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    Sram Sparc l.e.d. failure.

    Hi Alex, I had a simular problem with a Wisper bike. The surround had lifted a bit on the throttle power indicator panel and the power LED had stopped working as well as the throttle being a bit sticky. I took the throttle assembly apart and found that water had got inside and on the little...
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    My Dilemma......

    We are talking AC input and load to convert from 230/240volts to 36 volts. Turn your charger over and look at the label. The initial question was can it be run from a 600watt inverter (that is 600 AC watts). Answer is if it is 2amp rated then yes if it is 3amp rated them no. You can also do...
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    My Dilemma......

    You just need to do the maths P=VxI for the output therefore 240volt @2 amp = 480watts ok @2.25amp = 540 ok @2.5 = 600 inverter on MAX @2.6amp = 624 inverter overloaded (alarm) @3 amp = 720...
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    My Dilemma......

    This is the spec. sheet for a typical 300 watt inverter sold by maplin's which has a 25amp DC input fuse, are you positive your inverter is rated at 600watt continuious and not a 300watt with a surge to 600watt rated one. LP
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    My Dilemma......

    Opps, that should read 25Amp DC input fuse for a 300watt rated inverter. :D
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    My Dilemma......

    Yep, had a clamp meter on the charger, when you connect it 1st time it spikes, multiple spikes stress the fuse and it eventually pops, changed for a 3 amp and ok (so far). The 24volt lead acid charger also spikes but not as much or as big a difference (27volt/22volt). I put this down to the...
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    My Dilemma......

    The 600 watt inverter will probably not power the charger as almost all are 2 to 3 amps rated. I have used a 36 volt Li Wisper charger on a 600 watt inverter and it trips it out on the initial surge, my 24volt charger just manages but the inverter gets very hot very quickly and draws almost 20...
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    Alien hub motor question

    As to supply - good old ebay, I also have seen a UK seller and will look up the site when I get home and post a link for you (Ebay will be cheaper!)
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    Alien hub motor question

    I have the Cyclone 250/350watt unit fitted to a standard Halfords “off the shelf” bike. I too read about the water ingress issues and have added a bit of silicon sealant to the cable entry to the motor as this was the only place I could find that looked like it would let in water. I also made...
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    Has anyone used this kit?

    This extract from Chain Maintenance is a good guide, in fact a good site for all bike DIY stuff. The bit about the new chain and factory lube is spot on, as is the "don’t spray and pray" brigade advice and I can personally recommend the SRAM POWERLINK it is just magic, chain removal in 2 seconds...
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    Electric Bike Videos

    And this one YouTube - Starter Motor Powered Electric Bike has got to be the worst contraption I think I have come across! :eek:
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    Wisper Works 905e - Modified 22MPH

    SORRY ITS Sold
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    Making batteries last 10 years

    True, the sad thing is that to get any decent range with Lead Acid they weigh too much to carry and reduce the range just having to pull them along. I like the LION battery, nice and light but I don't like the cost of a new one or the fact they seem to be scarcer than gold dust, especially the...
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    Making batteries last 10 years

    Hi Flecc, no I was referring to the former. We use them to power the Telephone Exchange Equipment as well as Broadband etc. and though they are for standby they are subjected to monthly full load tests as well as the main use which is to power the equipment, rectifier's that are AC fed are in...
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    Making batteries last 10 years

    I work for a well known Telecoms’ company and we have in use more lead acid paste batteries than any other company and have since the 50's, which includes any car manufacturers you would like to mention. The cells we use are usually sealed and have a useful life of 6 to 8 years being a...
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    Off Road Switch

    I use my Wisper 905e for very much the same thing. I have not tested the range but I timed the re-charge over the same 6 mile route in each mode and the battery took an hour and 9 minutes in normal mode and an hour and a half in unrestricted mode. Not very scientific but when used just for my...
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    Wisper Works 905e - Modified 22MPH

    Video now on YouTube, shows the motor working in both modes, still compiling the how to video but messed up some of the motor shots (to dark) anyhow have a look if you want here. YouTube - Electric Bikes - Cyclone compared to a Wisper 905e
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    Electric Bike Videos

    A youTube video that shows the 250watt Cyclone changing gear on an 8 speed and a modified Wisper Works 905e with off road mod. YouTube - Electric Bikes - Cyclone compared to a Wisper 905e