Just starting another build...Question

[Old_Dave]

Thanks Richard

Lipos coming from Germany via GLS & power supply from the uk... they are out of stock of the 4 x 6 cell chargers so will have a look at that link.

 

[rpurchon]

dont bother with the 4x6 charger or any other brand .the icharger is my 4th charger ive bought and its miles ahead of the others.follow the link to read all about them.This link on RCGroups
its all singing and dancing.if it had hands itd make your tea.
i run mine from a old pc power supply and charge 2x5000mah in parralel at 5 amps.
get the bigger ones if you can afford.
richard

 

[Deleted member 4366]

RC Li-Po 22.2v 12c 5000mah Battery for Remote Control airplane boat car | eBay

Might be worth a punt. You probably won't have to pay duty on something that small. I never paid duty on any of the 12 pairs I ordered at different times, but I think I got caught on the 8000maH ones. You can get the 8000maH ones from Hobbyking Germany for about £150 inc. delivery - no duty to pay.

 

[Old_Dave]

Have ordered the 5800ma ones from Hobbyking Germany cos after testing and seeing what range they give, I intend (cough) to put another 2 in parallel to give 11.6a .. which should be about right

Still thinking of a cunning plan for the 44 lvc

 

[Deleted member 4366]

Whatever your cunning plan, one of these is useful for lipos:
Waterproof Digital Voltmeter DC 15V To 120V Red Led Voltage Digital Panel Meter | eBay
or one of these if you feel confident enough to remove the shunts and mount them remotely, which is fairlr straight-forward but a bit fiddly. With these you get the aH used which is really useful as it gives a good prediction of how much further you can go.
Digital 60V 100A Balance Voltage Power Analyzer Watt Meter Balancer RC Charger | eBay

 

[Old_Dave]

Thanks for the links but I already have a cheapo watt meter and lcd volt displays from a previous life, lol

The cunning plan involves either adjusting the controler lvc upwards or maybe fudging something up with zeners, but no panic as it will be a while before every thing arrives


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[Old_Dave]

Updates...

BMS kit with 20" wheel arrived yesterday
BMS lifepo4 battery (for bike no1 came today)
Hobby King lipo batteries ( 2nd pair of 6 cell 5800ma from uk warehouse for build no2 coming tomorrow)

I think I have just about everything, so will start on build 2 next week.

Just for a laugh.. tried bike 1 that has the gng 36v mid drive kit this morning with 12 cell lipo, hmmmmmmm it was 'different' (nice one d8veh)

And finally.. a big round of applause to bmsbattery for many reasons including creativity

 

[morphix]

I just spotted this intriguing build on endless-sphere while researching freewheels and gearing..



The guy used a motor from HobbyKing and even built the freewheel himself (laser cut then drilled out the teeth himself)!

Look at the low-weight (665g) of this $69 69amp 37v 235RM motor from HobbyKing, would it be any good?

KD 63-20L Brushless Outrunner 235Kv

 

[Old_Dave]

I'll pass on that.. lol

 

[morphix]

I'll pass on that.. lol

That the Howard Hughes MkII init? Not the prettiest bike but you have to admire the engineering and work he's put into it.. why not just fit a hub motor tho eh.

 

[Old_Dave]

but you have to admire the engineering and work he's put into it.

In my live I've seen many fine examples of 'engineering' that I've been in awe of... but that scruffy lump of pooh aint one of them

Dogs dinner springs to mind..

 

[Scimitar]

It's got rough edges, and it's not the way I'd do it, but at least he did it.
Have you made one from scratch?

 

[Old_Dave]

From page 2 of where the 1st piccy came from... ROFPMSL

http://i543.photobucket.com/albums/gg471/bobc0/bikebits/Img_0056.jpg

 

[Deleted member 4366]

Just for a laugh.. tried bike 1 that has the gng 36v mid drive kit this morning with 12 cell lipo, hmmmmmmm it was 'different' (nice one d8veh)

12S lipos will bring any boring bike to life and make it a bit more like it should have been in the first place. Not that yours is boring. I find that a 48v battery gives a bit too much speed, but 44v is just about right.

I can just image you pedalling like a demented whirlygig trying to keep up with it .

 

[morphix]

From page 2 of where the 1st piccy came from... ROFPMSL

http://i543.photobucket.com/albums/gg471/bobc0/bikebits/Img_0056.jpg

cringe!!!!

 

[Old_Dave]

I can just image you pedalling like a demented whirlygig

Must admit I did try

But only for about 3 seconds before I realised that it was futile....

 

[Scimitar]

From page 2 of where the 1st piccy came from... ROFPMSL

http://i543.photobucket.com/albums/gg471/bobc0/bikebits/Img_0056.jpg

So what? It's a work in progress. I don't see any of your creations and until you're prepared to show them and back up your laughter at someone else's efforts, it might be as well to keep schtum.

 

[Old_Dave]

Hi Scimitar

If you don't like my comments on this matter, then I do of course apologise for offending your sensitivities.... But why you felt the need to stick your 2 euros in is a bit of a puzzle.... I normally refuse to enter into a battle of wits with an unarmed man so will do you a favour and ignore any more of your snidely remarks


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[Scimitar]

Hi Scimitar

If you don't like my comments on this matter, then I do of course apologise for offending your sensitivities.... But why you felt the need to stick your 2 euros in is a bit of a puzzle.... I normally refuse to enter into a battle of wits with an unarmed man so will do you a favour and ignore any more of your snidely remarks


Sent from my iPhone using Tapatalk

I see.... good at dishing it out, eh?
Come on, let's see yours.

 

[Scimitar]

I see.... good at dishing it out, eh?
Come on, let's see yours.

Hah. Didn't think so.