Search found 13 matches

by LegacyCode
Oct 21 2020 5:42am
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

Won't that depend on the size of your pack and then choosing a controller with appropriate amp rating? You don't need to be pulled over for exceeding the legal speed limit (with not plans to get a license) :wink: These bafang motors have a controller built in, supposedly all it takes is remove the ...
by LegacyCode
Oct 19 2020 3:19pm
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

So do you basically have 5 speed settings to punch for speed/power as your throttle control? So in 4th with a 12S7P with 80amp controller and the Bfun BBS02 could LC go at least 12km/h (15.5mph) in 4th (and even faster in 5th) ? 5 Levels of peddle assist, it should just cut off peddle assist above ...
by LegacyCode
Oct 19 2020 2:57am
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

I think 84 Samsung 35e would be a good option (s14p6) for 20.7ah and 48a max if i'm correct? that should be enough the controller in the motor has a 25a max rating from what i found. Cells : Samsung 35e x84 Step Down : https://www.aliexpress.com/item/4000816351721.html (plastic one) Switch : https:/...
by LegacyCode
Oct 18 2020 2:02pm
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

If this mini cube 52V 30Q battery (possibly has the newer 141 30Q's) is illegal for your current use what makes you think your split 52V 30Q or 70T builds are legal? With this mini-mighty 52V you could've already been whistling on your IDEAL to nearby town :wink: https://lunacycle.com/52v-mighty-mi...
by LegacyCode
Oct 17 2020 4:56pm
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

Being you've got a spotwelder you really should consider either a 14S6P or 14S7P (35E) triangle DIY with 20.7Ah or 24Ah rating ( with room for the BMS at bottom of either one ) ... I'll keep them in mind! 112 cells cost 300 euro or so at nkon Checkout these excellent design/build articles by spinni...
by LegacyCode
Oct 17 2020 7:47am
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

Been trying to figure out how many cells i can fit into things using inventor this one from aliexpress can hold about 50~60 18650 cells at 180mm length or so with space for a bms https://www.aliexpress.com/item/32931329946.html casecell.png also looked at a pvp pipe wtih a 100mm diameter and a 1.8mm...
by LegacyCode
Oct 16 2020 4:25am
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

"https://endless-sphere.com/forums/download/file.php?id=281045" ... IDEAL triangle area ASSUME THIS IS THE SMALLER TRIANGLE AREA (excluding pivot suspension area) within the larger inside bike frame triangle. Following is based on smaller triangle area that doesn't include space taken up by pivot s...
by LegacyCode
Oct 13 2020 2:25pm
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

Does the Samsung 40t pack I gave you a link to fit ? Or will it fit ? It's 12 in It gives you dimensions all you have to do is get some cardboard and some tape tape the battery mock-up and see if it fits you were going to have to do it anyways you're going to have to make a maca more that bike the ...
by LegacyCode
Oct 13 2020 8:24am
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

Spot welder just arrived

Image
by LegacyCode
Oct 12 2020 3:46am
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

None of their packs can fit the triangle, the smallest one was too big, it's full suspension MTB i'll put a picture below. https://i.imgur.com/moXH7Sc.jpg Can't envision that split pack lookin' cool in your very cool looking bike. Isn't a 12S4P fast enough and cooler-lookin' in that allowable trian...
by LegacyCode
Oct 11 2020 3:19pm
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

What is so unique about the design of your bike that neither a 14S4P triangle or rectangle pack is doable? Having a difficult time imaging a bike that doesn't have room for a triangle or rectangle pack. Are you building a 3-wheel trike? If so isn't there room enough for a rectangle pack in or under...
by LegacyCode
Oct 11 2020 9:25am
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Re: Split ebike battery

Have you checked out UnitPackPower's triangle packs I've spoken to them they have nothing that could fit my bike. What about fabricating your own DIY rear rack for your 14S4P I've looked into rear racks, it's not really an option either the s14+ doesnt go to bms, it is the P+, the bms is P- negativ...
by LegacyCode
Oct 11 2020 6:45am
Forum: Battery Technology
Topic: Split ebike battery
Replies: 54
Views: 1223

Split ebike battery

I found this forum through google when looking into creating a battery pack for my bike, I've been trying to build up an electric bike for a while and I've ran into the problem that pre-built packs just wont fit, since then I've been doing alot of reading on how to make a pack myself i'm just stuck ...