Search found 4979 matches

by NeilP
May 24 2020 1:53am
Forum: Battery Technology
Topic: B52 LiFePO4 pack
Replies: 16
Views: 451

Re: B52 LiFePO4 pack

AW, cheers.
Yes understand your points,
Interesting about Ping packs...
Is he still about ?

If I get the Steslth pack here and open again, I’ll photo the BMS and read label on cells
by NeilP
May 24 2020 1:51am
Forum: Battery Technology
Topic: B52 LiFePO4 pack
Replies: 16
Views: 451

Re: B52 LiFePO4 pack

Yes of course if a pack has a non-adjustable BMS whose "start-balance voltage" **requires** going higher than 3.45Vpc then you have to choose between letting a crappy BMS dictate your charging profile at the price of reducing pack longevity, or replace the BMS, or use something else to do your bala...
by NeilP
May 24 2020 1:48am
Forum: Battery Technology
Topic: B52 LiFePO4 pack
Replies: 16
Views: 451

Re: B52 LiFePO4 pack

999zip999 wrote:
May 23 2020 9:52pm
Hey Neil get on your boat and go to London viewtopic.php?f=31&t=102908
Thanks... interesting...
by NeilP
May 23 2020 12:16pm
Forum: Battery Technology
Topic: B52 LiFePO4 pack
Replies: 16
Views: 451

Re: B52 LiFePO4 pack

Ok thanks Will see what the owner decides to do I will e-mail him the link to this thread so he can read up on it all and decide. He may just ask Stealth to send new battery and charger or we may build new pack ourselves....Angus.... over to you and Oz to decide... new pack needed .... what you want...
by NeilP
May 23 2020 1:38am
Forum: Battery Technology
Topic: B52 LiFePO4 pack
Replies: 16
Views: 451

Re: B52 LiFePO4 pack

So , yea, thanks AmberW to Sum up..by bad..posting when tired. and being lazy..I already admitted that :roll: Yes LiFePO4 pouch cells, 24 series and 3.65 volt per cell gives the 87.6 as on the charger. So all good. As long as the pack does not pop. He know he has to buy new pack and charger...
by NeilP
May 23 2020 1:33am
Forum: Battery Technology
Topic: B52 LiFePO4 pack
Replies: 16
Views: 451

Re: B52 LiFePO4 pack

So I pull the pack and strip..start checking cell voltages....yes all way too low..0.99 1.4 etc etc. Well, those cells are toast. I wouldn't recharge them, but since you've already done that, I wouldn't allow them near a building or anything else, especially if they actually are RC LiPo types. But ...
by NeilP
May 22 2020 2:59pm
Forum: Battery Technology
Topic: B52 LiFePO4 pack
Replies: 16
Views: 451

B52 LiFePO4 pack

Ok, not posted for a while..and yes, tell me I am beign a lazy b***ard.. cause I am . Read the explanation and then a question at the bottom Just had a Stealth B52 brought down to me...not charging. is battery shagged ?..etc. not been charged for a while, Same old story etc. So I pull the pack and s...
by NeilP
Feb 17 2020 4:58am
Forum: General Discussion
Topic: Atmega16 firmware dumping. Win EXE editing etc
Replies: 2
Views: 514

Re: Atmega16 firmware dumping. Win EXE editing etc

Yes, POSIX threads

I had the pthreads for w32 thingy , but not managed to instal /get it working yet... think other dependencies or something
by NeilP
Feb 17 2020 3:32am
Forum: General Discussion
Topic: Atmega16 firmware dumping. Win EXE editing etc
Replies: 2
Views: 514

Atmega16 firmware dumping. Win EXE editing etc

Ok, so not an e-bike question, but this is the only forum I know of, and have history on, and that I know there are people here with potential knowledge to answer. I will make this a long post, by giving the back story first, rather than dive in with my question. This is actually related to a Harley...
by NeilP
Oct 24 2019 2:55am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

I've been looking through RS. Some little ones there , 440-430-420-410-400 type input tappings with labelled 230 out. as opposed to the one I bought from ETE, single in single out 415 in 240 out. With the RS one gives the chance to connect to higher input windings so lowering the output voltage. Rat...
by NeilP
Oct 23 2019 3:04pm
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

If my mate that painted it had been happy with the original built in light system on the lathe, I'd not be doing this We bought it together 3 years ago. Saddle gearbox was shagged...so we stripped it and rebuilt it...But Dave, wanted to make it look shiny too...so he started stripping irreklant bit ...
by NeilP
Oct 23 2019 10:05am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

Punx0r wrote:
Oct 23 2019 9:53am
Since the 240V socket is ring next to the 415V 3 phase socket I think I would have just cable tied a 240V flex to the 3 phase machine lead and plugged both into the wall :wink:
That is how it is at the moment, but was just trying to get it all running off one.
by NeilP
Oct 23 2019 8:30am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

Ah yes, nice idea
Thanks
Will try that when I get home
Should of thought of that myself, as an extension to my own thoughts. I was thinking I need to load it with a bulb or make sure to power in other stuff first

Got plenty power resistors kicking about
by NeilP
Oct 23 2019 7:54am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

Already have enough 240 volt outlets on the wall, That is how we currently do it. Just wanted to get it all running off of one single feed. Alternatively I could run a new 5 wire three phase supply, to bring a neutral to the machine as well to give direct 240. But was trying to do it with as little ...
by NeilP
Oct 23 2019 5:14am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

OK, so I ordered one of these.. https://www.ete.co.uk/product/transformer-415v-to-240v-25va-single-voltage/ and it arrived. Tested it out, but because it is a transformer and its no load voltage being higher until load is drawn ..it is useless for me....bugger. Its no load output is 267 volts. Stick...
by NeilP
Oct 21 2019 5:27am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

Have ordered a 100VA 380-240 transformer

Would have liked bigger, but want to fit in existing box if I can

Encoder is 18 VA
Looking up LED lighting strips and swan neck units now

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by NeilP
Oct 21 2019 5:10am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

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by NeilP
Oct 20 2019 12:01pm
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

What do you get if you measure between 2 phases of the 3 phase supply? Between phases will be single phase. 400 volts. Was To get standard 240 volts I need the neutral line too. Think in USA your single phase might be across two phases of your 3 phase, but over here we need the neutral to get down ...
by NeilP
Oct 20 2019 11:57am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

I just checked the DRO manufacturers website. All their models accept 15-24VDC ±10% The newer ones maybe, but I just popped into the workshop, and it only had the standard ‘IEC’ type 240v ac input kettle style plug, there is no other input jack socket Just says 110/240v 18VA So I have ordered a 100...
by NeilP
Oct 20 2019 9:27am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

It is 240 vac input

Have been looking at other transformers

https://www.ete.co.uk/wp-content/uploads/2016/10/WV.pdf

Think if I got a 380 In 240 out, I could then run any lights with a 12v Switched mode type supply, and run the Digital display too
by NeilP
Oct 20 2019 1:34am
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

Sorry, absolute Max would be 3 amp, simply because it has a 3 amp fuse in its standard UK 3 pin plug. As you say, probably much much less. Was somewhere between 2-5 in the morning, on the phone from bed when I wrote that. So yeah, much lower,, sub 1 amp if not less Yes, transformer, that did occur t...
by NeilP
Oct 19 2019 11:57pm
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

Yes, AC, Measured at spot on 50AC with cheap DVM YEP, understand the RMS values etc and 70 v bc when rectified. Will start searching online for suitable 12v lighting units. Thanks Next issue... The lathe has a Newall Spherosyn digital readout/encoder unit that runs off 240 vac. The lathe supply does...
by NeilP
Oct 19 2019 9:59pm
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Re: Non EV LED Lighting PSU Question

Quick and simple, cheers My mind was chucking around ideas full of bridge rectifiers, capacitors, Switched mode supplies, voltage convertor boards off of E-bay, 3-d printed cases, hours of stress building , experimenting , cursing and swearing. And you come along and solve the problem with one quick...
by NeilP
Oct 19 2019 4:10pm
Forum: General Discussion
Topic: Non EV LED Lighting PSU Question
Replies: 27
Views: 1990

Non EV LED Lighting PSU Question

Not EV related... except if you were to say that if my lathe had better lighting, my next hub motor axle might be more accurate ! 🤪 Ok, so I have a Colchester Triumph 2000 lathe. British mains 3phase power, The power socket and cable is 4 pin, being 3 phases plus Earth. No neutral. I cannot run a ne...
by NeilP
Oct 12 2019 1:46pm
Forum: Battery Technology
Topic: Big lead acid single cell capacities
Replies: 9
Views: 874

Re: Big lead acid single cell capacities

Well a few years later and they are still running . Kept charged by a measly 300 what of solar cells. I checked the fluid levels in them last month.. I did them when I put them in...whenever this post was new..and only again this year, Need about 30 litres of distilled water :( No plates were uncove...