Search found 171 matches

by want to build
Jun 01 2020 12:25pm
Forum: Battery Technology
Topic: how many amps should i plan for a Diy battery and which nickel strips?
Replies: 14
Views: 395

Re: how many amps should i plan for a Diy battery and which nickel strips?

yes thank you for that.

I hope people have/will read my text containing questions.
by want to build
Jun 01 2020 8:45am
Forum: Battery Technology
Topic: how many amps should i plan for a Diy battery and which nickel strips?
Replies: 14
Views: 395

Re: how many amps should i plan for a Diy battery and which nickel strips?

ok i think i understand you mean have larger parallel groups. but that is not my intention, i do not want to add more cells than 52 i have. tx for the proposition.

So come back to my questions ...lol they are on top of my nice pictures, can anyone try to answer it ? i would apreciate.

a plus
by want to build
Jun 01 2020 8:39am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1590
Views: 210055

Re: 2 Speed Xiongda hubmotor

is it the piece i circled on the last picture ?
is it just a washer or does it go inside the motor?
does it have thread?
did xiongda sent it with your kit?
by want to build
Jun 01 2020 7:03am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1590
Views: 210055

Re: 2 Speed Xiongda hubmotor

HI im unsure what to conclude from what you say . is it that the only part missing is on the non freewheel side? a piece, thick gasket that goes a little inside the motor? could you find an image to show plz?
by want to build
Jun 01 2020 5:45am
Forum: Battery Technology
Topic: how many amps should i plan for a Diy battery and which nickel strips?
Replies: 14
Views: 395

Re: how many amps should i plan for a Diy battery and which nickel strips?

Hi John, You are saying that viewing the situation in terms of Current C is makes more sense if i understand you. Unfortunately i do not have this knowledge, i, m not used to it and the motor world... if it is a neccessity where can i learn it? if it is not absolutely necessary can we do wihtout it ...
by want to build
May 31 2020 7:12am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1590
Views: 210055

Re: 2 Speed Xiongda hubmotor

That is normal. hi knutsm, when you say it is normal do you mean that there is only supposed to be 3 pieces on each side of the motor ? Also when i look at those pictures below i do count 4 pieces on each side. Can anyone explain me what is the job of those pieces and if i should try to get them? (...
by want to build
May 31 2020 3:52am
Forum: Battery Technology
Topic: how many amps should i plan for a Diy battery and which nickel strips?
Replies: 14
Views: 395

Re: how many amps should i plan for a Diy battery and which nickel strips?

Ill use kweld probably buy i dont wish to try the 0.3 cause i look for a simple method .HI here is a pic of my cells. i took them from lightly used drill pack i left a bit of original nickel sheet on them since i was thinking about soldering them with lead tin but now i understand spot welding is be...
by want to build
May 31 2020 3:01am
Forum: Battery Technology
Topic: how many amps should i plan for a Diy battery and which nickel strips?
Replies: 14
Views: 395

Re: how many amps should i plan for a Diy battery and which nickel strips?

Nickel is almost free so use as much as you can. Go for the thickest your welder can handle and as wide as you can fit. Instead of amps, I like to think about discharge rates measured in C. I'm building a 20Ah 48V pack for a 1,800 watt motor but I intend to cruise at around 500 watt output. That's ...
by want to build
May 31 2020 2:54am
Forum: Battery Technology
Topic: how many amps should i plan for a Diy battery and which nickel strips?
Replies: 14
Views: 395

Re: how many amps should i plan for a Diy battery and wich nickel strips?

Be aware that the series strips carry the current, and the parallel strips only keep the cells in that P-group equalized. This means the parallel strips carry very little current, less than 1A, even on an ebike that is using 60A peaks. Resistance in the P-strips is a good thing, it limits the cells...
by want to build
May 31 2020 2:07am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1590
Views: 210055

Re: 2 Speed Xiongda hubmotor

hi can some of you take a look at the number of nuts and bolts there is with my set, i might have lost some since date of purchase not sure, and a guy from a bike shop told me i must have at least a missing piece where the yellow circle is in order to make sens . (the green represents the hub the st...
by want to build
May 28 2020 7:24pm
Forum: Battery Technology
Topic: how many amps should i plan for a Diy battery and which nickel strips?
Replies: 14
Views: 395

Re: how many amps should i plan for a Diy battery and which nickel strips?

hi yes
it was witten over a set of questions kweld and lipo battery.

I know it is a long introduction to my questions ... better be more spécific than less.
by want to build
May 24 2020 7:17am
Forum: Battery Technology
Topic: how many amps should i plan for a Diy battery and which nickel strips?
Replies: 14
Views: 395

how many amps should i plan for a Diy battery and which nickel strips?

How many amps minimum should i plan when construction a battery that opens for possibilities for future project needs? I am planning my welding sheets… and i have a need for knowledge so here are some questions if you can help me i would greatly appreciate . My firts motor will be xiongda so it take...
by want to build
May 22 2020 8:59pm
Forum: E-Bike General Discussion
Topic: which vendor sells pure oblique nickel strip trusted
Replies: 2
Views: 155

Re: which vendor sells pure oblique nickel strip trusted

tx for the link,

would you happen to know how long do i need for a a 70 cell battery?
by want to build
May 18 2020 11:30pm
Forum: E-Bike Technical
Topic: Reention POLLY DP-6C - 70 cell battery case - how fit BMS?
Replies: 17
Views: 1655

Re: Reention POLLY DP-6C - 70 cell battery case - how fit BMS?

Hi i understand that it is important for you to keep this simple and correct rythm. At the same time asking for a comparaison between hailong and keention means a different interrogation for me. Since i search for answers something i try to reach different people that is all. I m beginning to unders...
by want to build
May 18 2020 11:17pm
Forum: E-Bike General Discussion
Topic: how to choose a good battery case ?
Replies: 19
Views: 712

Re: how to choose a good battery case ?

lol the one. here is what i got so far. an ebay seller told me polly 2 was more solid than polly1 . (like an improved version) A chinese seller told me the difference was about a hidden handle . than he told me there are no difference. than he told me that one of them has a place for controller. it ...
by want to build
May 18 2020 1:12am
Forum: E-Bike General Discussion
Topic: which vendor sells pure oblique nickel strip trusted
Replies: 2
Views: 155

which vendor sells pure oblique nickel strip trusted

hi who made the nickel tests to confirm a seller on aliexpress maybe sells pure nickel stipes (2 parralle)? ill use a 70 cell case like the one below. how many meters do i have to buy for 1 battery like this? https://www.aliexpress.com/item/32959097236.html?spm=a2g0o.cart.0.0.78d53c00yU6k1S&mp=1 tx
by want to build
May 17 2020 1:11pm
Forum: E-Bike General Discussion
Topic: how to choose a good battery case ?
Replies: 19
Views: 712

Re: can anyone tell me the difference between polly 1 and polly 2 battery case tx

want to build wrote:
Apr 26 2020 8:07am
hi
i read somewhere that there is such thing as polly 1 and polly2 battery case .
what are the differences between them?
maybe poly1 polly2 is just terms used for hailong? who has tested lots of cases?
by want to build
May 17 2020 1:10pm
Forum: E-Bike General Discussion
Topic: how to choose a good battery case ?
Replies: 19
Views: 712

Re: how to choose a good battery case ?

Good question. I for once think that in a conversion project, the battery is like 90+% of the job, especially if you use a simple bbs kit, or a laced hub with integrated controller. Anyway, without trying to undermine the more enthusiastic answers in this thread, I'd suggest having a look first at ...
by want to build
May 17 2020 1:05pm
Forum: E-Bike Technical
Topic: Reention POLLY DP-6C - 70 cell battery case - how fit BMS?
Replies: 17
Views: 1655

Re: Reention POLLY DP-6C - 70 cell battery case - how fit BMS?

Hi im trying to figure what type of case holds the strongest on top of a regular rear rack ? how is reention compared to hailong?
by want to build
May 17 2020 1:01pm
Forum: Battery Technology
Topic: DIY Arduino Battery Spot Welder et 48 v?
Replies: 41
Views: 949

Re: DIY Arduino Battery Spot Welder et 48 v?

hahaha yes , when you have all the parts maybe it is easy to jump in to practice but before this i have to buy the stuff and since i dont want to buy something that will not serve my project, that is why i ask questions on materials. one of the big questions i have is what material ( nickel pure cop...
by want to build
May 17 2020 4:54am
Forum: Battery Technology
Topic: DIY Arduino Battery Spot Welder et 48 v?
Replies: 41
Views: 949

Re: DIY Arduino Battery Spot Welder et 48 v?

HI I have been reading lots of pages till #18 of the 45 page on kwell spot welder. to be honest there is a lot of technicality that i didn t understand. Is it really worth to spend all those a hours to learn the thinkness functioning and the metal types functioning with the spot welder to achieve hi...
by want to build
May 14 2020 11:52pm
Forum: E-Bike General Discussion
Topic: i need advice on choose a good solid case with nickel
Replies: 0
Views: 210

i need advice on choose a good solid case with nickel

hi I have 52 vtc4 separated cells . i will build 13s 4p battery and will use already purchased waterproof bms see link below . i want a lockable case that is solid ,i ll put it on top of a regular rear luggage thing over the back wheel. i dont need the charging parts of the the case. cause ill run m...
by want to build
May 14 2020 10:47pm
Forum: E-Bike Technical
Topic: Reention POLLY DP-6C - 70 cell battery case - how fit BMS?
Replies: 17
Views: 1655

Re: Reention POLLY DP-6C - 70 cell battery case - how fit BMS?

You need a dedicated BMS, same as with Hailong 2 cases. I wonder why the seller didn't offer a all in one package. Bought myself a Polly 1with 13s BMS that fits on top, no problem HI could anyone please explain me what is Polly 1 vs polly 2 , for the love of god if god exists i'm having a hard time...
by want to build
May 14 2020 10:33pm
Forum: E-Bike General Discussion
Topic: how to choose a good battery case ?
Replies: 19
Views: 712

Re: how to choose a good battery case ?

anyone can tell me who could answer this?
by want to build
Apr 26 2020 8:07am
Forum: E-Bike General Discussion
Topic: how to choose a good battery case ?
Replies: 19
Views: 712

can anyone tell me the difference between polly 1 and polly 2 battery case tx

hi
i read somewhere that there is such thing as polly 1 and polly2 battery case .
what are the differences between them?