Greetings from Holland,
I am english, but moved to holland several years ago
I picked up my first e-bike (sparta 24volt 5AH nicad DC motor on crank) last year, and converted it to 24v LI-ion 8AH by ordering a chinese battery from ali express and a simple charger, as the battery fit inside the original Nicad case with plenty of room to spare, and I just fitted a new charging plug in the case
I then got a 36volt E-cult bike (front hub motor) that had been abandoned, and re-sold by the local council, which was missing its battery, and the handle bar controller/display was water damaged, So I ordered a new 7.5 AH 36volt battery from the same place as the previous one, along with another charger, and fitted it inside the "casing" that the original battery slid into, and fabricated a 3mm thick piece of plasic to "cap off" the end, again, adding a new charging port..and it looks like it was factory/stock (just means i have to dismantle the rear rack to get the battery out, which only takes about 5 minutes)
I got the bike working, by googling the chinese controller, and finding out the "trigger/override" wires, wiring them together, via an on off switch on the handle bars, so now its either "full power" or nothing, when i pedal, with the pedal sensor (although I could get a new controller and wire it back up at a later date, (but power controllers/displays are cheap as chips now, so I'd probably order one from china instead)...the bike motor has no hall effect sensors, and the controller is VERY simple..so easy to over-ride
I then bought a second hand E-bike made by "cross", 24volt (front hub motor) digital display with 5 power levels, for my mum, and geared it very easy for hills, back in the uk which is her daily driver now
last weekend, I got a "Flyer" ebike, that the user "flecc" has talked about a lot on his web page "http://www.flecc.uk/p/panindex.html"
mine is the 36 volt version, and I joined this forum as I have several questions
The bike didnt come with a charger sadly...and they seem very expensive even second hand
The battery was dead (no lights when i pressed the button, so it must have been in "sleep mode" (after reading all the forums and flecc's website)
I'm proficient with a multimeter and a soldering iron, so decided to charge the battery manually, doing a "direct charge" while monitoring the voltage over each pack of cells in series
the battery started off at 30.5Volts with no charger connected, then i charged it at 2amps for 1 hour, raising the voltage to 25.4V and then for another hour raising the voltage to 36.6 volts and have not charged it further as of yet
I did this, in the "hope" of resurrecting the bms of the battery..but as of yet, it still seems to be dead (no lights, no output)
is there any way I can bring the bms back online, without connecting it up to an original charger?
from flecc's website I see this about the batteries terminals-
1) Charge monitoring, presumably by temperature.
2) Negative (-)
3) Battery Meter.
4) Charging Positive (+)
5) Output Positive (+)
My first quesion would be,
Does the battery need to receive some sort of signal from the original charger, over no.1 or no.3 terminal to come alive again?
Is there a way to charge the battery with a normal 42 volt charger, but trick the signal wires into thinking it is an original charger?
Basically, can i charge the flyer battery, with something other then an original charger?
my next question, involves the idea of putting a chinese battery into the original "flyer" casing.
connecting the plus and minus wires is easy, but there is a 3rd wire.....does anyone know what comes to or goes from this wire, signal wise, and is there a way to "spoof" it, making the bike think the battery is original?
Thankyou for any replies in advance, and I hope I can share my knowldge with others, as and when it is needed
Db.
I am english, but moved to holland several years ago
I picked up my first e-bike (sparta 24volt 5AH nicad DC motor on crank) last year, and converted it to 24v LI-ion 8AH by ordering a chinese battery from ali express and a simple charger, as the battery fit inside the original Nicad case with plenty of room to spare, and I just fitted a new charging plug in the case
I then got a 36volt E-cult bike (front hub motor) that had been abandoned, and re-sold by the local council, which was missing its battery, and the handle bar controller/display was water damaged, So I ordered a new 7.5 AH 36volt battery from the same place as the previous one, along with another charger, and fitted it inside the "casing" that the original battery slid into, and fabricated a 3mm thick piece of plasic to "cap off" the end, again, adding a new charging port..and it looks like it was factory/stock (just means i have to dismantle the rear rack to get the battery out, which only takes about 5 minutes)
I got the bike working, by googling the chinese controller, and finding out the "trigger/override" wires, wiring them together, via an on off switch on the handle bars, so now its either "full power" or nothing, when i pedal, with the pedal sensor (although I could get a new controller and wire it back up at a later date, (but power controllers/displays are cheap as chips now, so I'd probably order one from china instead)...the bike motor has no hall effect sensors, and the controller is VERY simple..so easy to over-ride
I then bought a second hand E-bike made by "cross", 24volt (front hub motor) digital display with 5 power levels, for my mum, and geared it very easy for hills, back in the uk which is her daily driver now
last weekend, I got a "Flyer" ebike, that the user "flecc" has talked about a lot on his web page "http://www.flecc.uk/p/panindex.html"
mine is the 36 volt version, and I joined this forum as I have several questions
The bike didnt come with a charger sadly...and they seem very expensive even second hand
The battery was dead (no lights when i pressed the button, so it must have been in "sleep mode" (after reading all the forums and flecc's website)
I'm proficient with a multimeter and a soldering iron, so decided to charge the battery manually, doing a "direct charge" while monitoring the voltage over each pack of cells in series
the battery started off at 30.5Volts with no charger connected, then i charged it at 2amps for 1 hour, raising the voltage to 25.4V and then for another hour raising the voltage to 36.6 volts and have not charged it further as of yet
I did this, in the "hope" of resurrecting the bms of the battery..but as of yet, it still seems to be dead (no lights, no output)
is there any way I can bring the bms back online, without connecting it up to an original charger?
from flecc's website I see this about the batteries terminals-
1) Charge monitoring, presumably by temperature.
2) Negative (-)
3) Battery Meter.
4) Charging Positive (+)
5) Output Positive (+)
My first quesion would be,
Does the battery need to receive some sort of signal from the original charger, over no.1 or no.3 terminal to come alive again?
Is there a way to charge the battery with a normal 42 volt charger, but trick the signal wires into thinking it is an original charger?
Basically, can i charge the flyer battery, with something other then an original charger?
my next question, involves the idea of putting a chinese battery into the original "flyer" casing.
connecting the plus and minus wires is easy, but there is a 3rd wire.....does anyone know what comes to or goes from this wire, signal wise, and is there a way to "spoof" it, making the bike think the battery is original?
Thankyou for any replies in advance, and I hope I can share my knowldge with others, as and when it is needed
Db.