Search found 168 matches

by sketchism
Feb 22 2016 7:50am
Forum: Battery Technology
Topic: Can i add LiPo in series with a Li Ion 48 pack.
Replies: 12
Views: 830

Can i add LiPo in series with a Li Ion 48 pack.

Hey guys If i have a 48V bike with a 48V 11.6ah dolphin pack, can I wire in a 2s3p pack of 4000mah LiPos in Series with the LiFePOs after the BMS to get some extra voltage and essentially have 14S pack at around the same Ah? would i need a diode to protect the BMS if they aren't in parallel? and whi...
by sketchism
Feb 21 2016 11:40am
Forum: Battery Technology
Topic: Advice building a 88/111V battery from 22.2V 10000mAh LiPO
Replies: 13
Views: 1567

Re: Advice building a 88/111V battery from 22.2V 10000mAh Li

ohh i see! (i also just finished reading the multistar thread thanks for linking that) So for the bike with the BAC-0501 i could build a light multistar 16Ah pack (4+4+6) and run at 40A to stay around 2.5C and be under the 60V max for that controller but still get a boost on the old 20A-48V battery,...
by sketchism
Feb 21 2016 8:32am
Forum: Battery Technology
Topic: Advice building a 88/111V battery from 22.2V 10000mAh LiPO
Replies: 13
Views: 1567

Re: Advice building a 88/111V battery from 22.2V 10000mAh Li

thanks dogman i noticed hyena actually runs the same multistars, although in a 22S 2p combo for 36ah and 120A draw, maybe this would be the go, its STILL cheaper than the 15C graphine packs, and twice the AH, although its certainly going to be hefty. if i used these packs on my other (48V atm) bike ...
by sketchism
Feb 21 2016 5:22am
Forum: Battery Technology
Topic: Advice building a 88/111V battery from 22.2V 10000mAh LiPO
Replies: 13
Views: 1567

Re: Advice building a 88/111V battery from 22.2V 10000mAh Li

If i was looking for 80-100 A at 98V - 16ah would these Graphine ones do it? or would i still be ok hitting 5C/80A from the Multistar's just on acceleration? What is the actual C rating i could pull from these compared to the Multistars considering they're twice the price? http://www.hobbyking.com/h...
by sketchism
Feb 20 2016 11:44pm
Forum: Battery Technology
Topic: Advice building a 88/111V battery from 22.2V 10000mAh LiPO
Replies: 13
Views: 1567

Re: Advice building a 88/111V battery from 22.2V 10000mAh Li

Perfect thanks :) Well limited to 60 at that voltage gives me just over 5000w which is what I was aiming for For around $1800 aud including some low voltage alarms and turning watt meter. Does that cost/power ratio seem fair to you guys? I actually tried to buy the 10kw complete hyena kit but can't ...
by sketchism
Feb 20 2016 9:00pm
Forum: Battery Technology
Topic: Advice building a 88/111V battery from 22.2V 10000mAh LiPO
Replies: 13
Views: 1567

Re: Advice building a 88/111V battery from 22.2V 10000mAh Li

Hi Simon thanks again for the reply! So if i don't go above 4.2 per cell 98.4 for the 24s pack (or below 3.7) and only use 80% of the ah any ride i'm all good? Then i can run say 60a through a 24s 16ah at around 4c and be pushing a max of 5900 through this setup with those Multistar 6S 16000mAh's Th...
by sketchism
Feb 20 2016 2:23pm
Forum: Battery Technology
Topic: Advice building a 88/111V battery from 22.2V 10000mAh LiPO
Replies: 13
Views: 1567

Re: Advice building a 88/111V battery from 22.2V 10000mAh Li

Would these 6s 16ah 10C ones be too low dicharge compared to the graphine 15c? they are much more affordable (half the price) but 10C not 15 (160A but i would only be drawing 60-80 max) http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=69143 what are your thoughts on the two, in sho...
by sketchism
Feb 20 2016 1:55pm
Forum: Battery Technology
Topic: Advice building a 88/111V battery from 22.2V 10000mAh LiPO
Replies: 13
Views: 1567

Re: Advice building a 88/111V battery from 22.2V 10000mAh Li

Thanks for the detailed reply, i have been researching all night (its 4 am here in aus) this will be my first lipo build but i have some experience with them from RC hovercrafts, although not at this size and i really appreciate the help and think a good middle ground would be 4 of the graphine 6s 1...
by sketchism
Feb 20 2016 3:52am
Forum: Battery Technology
Topic: Advice building a 88/111V battery from 22.2V 10000mAh LiPO
Replies: 13
Views: 1567

Advice building a 88/111V battery from 22.2V 10000mAh LiPO

I'm looking at building a new battery for a 96V setup i'm looking at , and i'm considering building it from something like these ( http://www.ebay.com.au/itm/TAOTUO-10000mAh-22-2V-30C-6S-LiPo-Battery-For-DJI-S800-S900-RC-Helicopter-/131385397081?hash=item1e972e0f59:g:FM8AAOSwpDdVEWlU ) A) has anyone...
by sketchism
Feb 20 2016 3:14am
Forum: E-Bike Technical
Topic: Controller/Display question (KT-LCD3) 1000w (more speed)
Replies: 7
Views: 2928

Re: Controller/Display question (KT-LCD3) 1000w (more speed)

thanks for that, great thread :) my reason for beefing up this controller rather than replacing is it has everything already integrated into the kit, OEM plugs and LCD etc so i would rather get this performing as highly as possible than fully re install a new controller for this bike :) it has a bui...
by sketchism
Feb 19 2016 8:52am
Forum: E-Bike Technical
Topic: Help me save this motor with a new setup!
Replies: 5
Views: 614

Re: Help me save this motor with a new setup!

Thanks guys, you've inspired me to order a set of halls and i will install them when they arrive next week hopefully, the controller has both modes so it's more of a question of how much voltage i can run thought it now, it's rated for 60Vmax but would 66.6V from 3 22.2V Lipos be ok without any cont...
by sketchism
Feb 19 2016 7:42am
Forum: E-Bike Technical
Topic: Help me save this motor with a new setup!
Replies: 5
Views: 614

Re: Help me save this motor with a new setup!

Thanks guys I ordered one of these with sensored/sensorless options and a set of SS411A (i hope these are correct) Halls as well so i think ill do both. ( http://goldenmotorcz.en.made-in-china.com/product/xMwJGlvOABUq/China-48V-2000W-BLDC-Motor-Controller.html ) (Q) is that controller ok? The main r...
by sketchism
Feb 19 2016 5:33am
Forum: E-Bike Technical
Topic: Controller/Display question (KT-LCD3) 1000w (more speed)
Replies: 7
Views: 2928

Re: Controller/Display question (KT-LCD3) 1000w (more speed)

Ok so i've spent a few hours on the controller and beefed all the traces right up with copper wire and solder along the entire length, and i've added some more solder to the shunt, it does feel much nicer to ride now. The caps are rated at 60V and 52V and the FETS are 60NF06, i'm not sure about the ...
by sketchism
Feb 18 2016 8:04pm
Forum: E-Bike Technical
Topic: Controller/Display question (KT-LCD3) 1000w (more speed)
Replies: 7
Views: 2928

Re: Controller/Display question (KT-LCD3) 1000w (more speed)

OK cool thanks for that! yeah its definitely pulling the speed directly from the hub, i think its a controller limitation more than the programming, ill play around with my options but my battery is only 30A and controller 22A max (explains the 1000W kit) I figure i can thicken the traces a bit and ...
by sketchism
Feb 18 2016 12:54am
Forum: E-Bike Technical
Topic: Help me save this motor with a new setup!
Replies: 5
Views: 614

Help me save this motor with a new setup!

Hey guys! OK, so i blew the halls in the leaf style motor on my main bike (i replaced the guts of that motor now that bike is going great again) Now have an almost new 1000/1500W hub and rim by itself that i want to use for a new build I'm based in Australia and i'm looking for a sensorless controll...
by sketchism
Feb 17 2016 6:24pm
Forum: E-Bike Technical
Topic: Controller/Display question (KT-LCD3) 1000w (more speed)
Replies: 7
Views: 2928

Re: Controller/Display question (KT-LCD3) 1000w (more speed)

Thanks for the speedy reply! When I set it to 16in the max speed drops to 36kph And when p2 is 1 no speed displays at all Even from when I first had the bike it's been exactly 50kph unloaded so the crash didn't change anything it's running as well as it ever has now. So maybe that's the limit of thi...
by sketchism
Feb 17 2016 9:44am
Forum: E-Bike Technical
Topic: how to adjust max speed
Replies: 14
Views: 2666

Re: how to adjust max speed

sorry to drag up an old thread but im having the same issue When i freewheel the bike and hold the throttle it spins up to 50kph (almost exactly) and then the watts drop down to just enough to maintain that exact speed. and when i ride it it does the same, so its definitely being limited by somethin...
by sketchism
Feb 17 2016 9:19am
Forum: E-Bike Technical
Topic: Controller/Display question (KT-LCD3) 1000w (more speed)
Replies: 7
Views: 2928

Controller/Display question (KT-LCD3) 1000w (more speed)

Hi guys i've been lurking for a while but i've finally found a problem i cant fix with searches. So, i've got a 1000w leaf style motor from this kit (the whole kit actually) http://dillengerelectricbikes.com.au/electric-bike-kits/off-road/off-road-electric-bike-kit-samsung-power-by-dillenger.html It...