Search found 1254 matches

by rg12
May 11 2020 6:38am
Forum: Battery Technology
Topic: Lead Acid 60V Charge Voltage?
Replies: 7
Views: 134

Lead Acid 60V Charge Voltage?

All of the lead acid chargers I've seen just say Output: 60V unlike the LiIon chargers that state the max charge and not the nominal.
by rg12
May 11 2020 6:23am
Forum: Battery Technology
Topic: 60V 100A BMS 65mm and Thinner Than 21mm?
Replies: 9
Views: 430

Re: 60V 100A BMS 65mm and Thinner Than 21mm?

This one can meet your requirements. I am using it. https://www.aliexpress.com/item/32997552090.html?spm=a2g0o.cart.0.0.743f3c00LjPB27&mp=1 Check with the seller on the exact size before you buy it. It won't fit my 18650 builds but good to know for my 21700 although the main wires are sticking out ...
by rg12
May 11 2020 6:21am
Forum: General Discussion
Topic: Reading Voltage Through The Main Current Wires
Replies: 7
Views: 192

Reading Voltage Through The Main Current Wires

If measuring voltage without a separate set of sense wires that go from the measuring device straight to the battery, the voltage being read will be lower than the pack voltage since there is a voltage drop from the wires resistance. My question is if there is another factor other than this that rea...
by rg12
May 09 2020 4:34am
Forum: Battery Technology
Topic: 60V 100A BMS 65mm and Thinner Than 21mm?
Replies: 9
Views: 430

Re: 60V 100A BMS 65mm and Thinner Than 21mm?

This one can meet your requirements. I am using it. https://www.aliexpress.com/item/32997552090.html?spm=a2g0o.cart.0.0.743f3c00LjPB27&mp=1 Check with the seller on the exact size before you buy it. It won't fit my 18650 builds but good to know for my 21700 although the main wires are sticking out ...
by rg12
May 08 2020 8:03am
Forum: General Discussion
Topic: Price of Shipping Battery Packs Inside Europe?
Replies: 16
Views: 500

Re: Price of Shipping Battery Packs Inside Europe?

I guess I will look for european forwarders for quotes then.
Thanks guys :)
by rg12
May 07 2020 3:59am
Forum: General Discussion
Topic: XLR Questions...
Replies: 7
Views: 288

Re: XLR Questions...

Well, thanks guys, will look into all of that :)
by rg12
May 07 2020 3:58am
Forum: General Discussion
Topic: Price of Shipping Battery Packs Inside Europe?
Replies: 16
Views: 500

Re: Price of Shipping Battery Packs Inside Europe?

I import alot of dangerous goods (cells) with all the paper work and hazmat certifications (usually from China to Israel) That doesn't have anything to do with *you* shipping stuff out. You yourself would have to be certified for it, and have your *own* paperwork, etc. I rather use a forwarder that...
by rg12
May 06 2020 4:47pm
Forum: General Discussion
Topic: Price of Shipping Battery Packs Inside Europe?
Replies: 16
Views: 500

Re: Price of Shipping Battery Packs Inside Europe?

Well, I don't know how shipping inside Europe usually works but isn't there a mail service for ground shipping (by postal vans/trucks)? Lots of mail service for ground shipping. The big corps, then regional European corps that may serve 3 countries. Regional playah's might not work well if you gott...
by rg12
May 06 2020 2:19pm
Forum: General Discussion
Topic: Price of Shipping Battery Packs Inside Europe?
Replies: 16
Views: 500

Re: Price of Shipping Battery Packs Inside Europe?

john61ct wrote:
May 06 2020 9:17am
I know pack builders that use courier services, just gets driven in a private car.

I doubt they would bother with that if it so cheap and easy otherwise.
Well, I don't know how shipping inside Europe usually works but isn't there a mail service for ground shipping (by postal vans/trucks)?
by rg12
May 06 2020 2:16pm
Forum: General Discussion
Topic: XLR Questions...
Replies: 7
Views: 288

Re: XLR Questions...

john61ct wrote:
May 06 2020 9:15am
Deutsch DTP
Umm, didn't get that...
by rg12
May 06 2020 6:15am
Forum: General Discussion
Topic: XLR Questions...
Replies: 7
Views: 288

XLR Questions...

First of all, the panel mount XLR, it's a sunken head screw, can someone tell me if it's M2, M2.5 or M3? Now, we are growing slowly to more powerful chargers and noticed that XLR get hot at around 8A, not to mention 10A+ I googled it and it's a 15A connector which is maybe possible but I guess it is...
by rg12
May 06 2020 5:58am
Forum: General Discussion
Topic: Price of Shipping Battery Packs Inside Europe?
Replies: 16
Views: 500

Re: Price of Shipping Battery Packs Inside Europe?

You'd have to talk to your specific shipper, and check on the specific source / destination country/etc for their VAT and import duties. That's assuming you already have your hazmat certification, which you'll almost certainly require for the shipper to even take your packages. I import alot of dan...
by rg12
May 05 2020 7:21pm
Forum: Battery Technology
Topic: 60V 100A BMS 65mm and Thinner Than 21mm?
Replies: 9
Views: 430

60V 100A BMS 65mm and Thinner Than 21mm?

Am looking for a Li Ion 16S 60V 100A BMS that is no wider than a 65mm and is thinner than 21mm.
I usually use the waterproof Daly BMS for that but they are 25mm thick.
Length isn't an issue.

Any ideas?
by rg12
May 05 2020 6:06pm
Forum: General Discussion
Topic: Price of Shipping Battery Packs Inside Europe?
Replies: 16
Views: 500

Price of Shipping Battery Packs Inside Europe?

Would like to know the shipping price between countries inside Europe of fully built battery packs (not cells), let's say 15kg package...
by rg12
May 05 2020 4:54pm
Forum: General Discussion
Topic: Military Type Connectors?
Replies: 7
Views: 309

Re: Military Type Connectors?

Found what I wanted...kind of... https://www.digikey.com/product-detail/en/amphenol-industrial-operations/MS3102R16-11P/MS3102R16-11P-ND/378631 $15 for the socket, mouser has the cool cap with the chain for $5 but I can't find the fitting female cable connector! P.S found out that the expensive part...
by rg12
May 05 2020 3:37pm
Forum: General Discussion
Topic: Military Type Connectors?
Replies: 7
Views: 309

Re: Military Type Connectors?

Damn, I just came from the Amphenol catalog... So much sexy stuff I don't need. About prices, I know it isn't cheap but I worked with a company that bought super sexy and huge power connectors that are all aluminum looking huge and heavy and they were about $30 for one so mine should be maybe less s...
by rg12
May 05 2020 11:29am
Forum: General Discussion
Topic: Military Type Connectors?
Replies: 7
Views: 309

Military Type Connectors?

amphenol.jpg I'm looking for a cool charger connector to replace those lame XLR as sometimes my customers use 10A chargers and also for the damn reason that we don't use 3 pins. I want a military type 2 pin female panel connector that isn't too beefy and that can handle the usual 80-100VDC and up t...
by rg12
May 02 2020 10:22am
Forum: Battery Technology
Topic: Lipo to ANT BMS Weird Problem
Replies: 15
Views: 505

Re: Lipo to ANT BMS Weird Problem

I'm using very short 8AWG wires, the drop can't be that much. What I understand is that the drop doesn't really happen in the cells and only the reading is wrong am I right? If it was real then changing the wiring like I did can't really affect the drop of the cells like what happened with cells 7 ...
by rg12
May 02 2020 4:33am
Forum: Battery Technology
Topic: Lipo to ANT BMS Weird Problem
Replies: 15
Views: 505

Re: Lipo to ANT BMS Weird Problem

Alright, I did the connections like we talked about, added the eliminated wires back and paralleled them with the previous wire. The result is that cells 8 and 15 drop half as much as they did (only the reading, they are perfectly balanced in real life) and cells 7 and 14 now read a larger sag but ...
by rg12
May 01 2020 2:02pm
Forum: Battery Technology
Topic: Lipo to ANT BMS Weird Problem
Replies: 15
Views: 505

Re: Lipo to ANT BMS Weird Problem

Have you actually checked the voltage of each cell? Multimeter? Balance charger? Alright, I did the connections like we talked about, added the eliminated wires back and paralleled them with the previous wire. The result is that cells 8 and 15 drop half as much as they did (only the reading, they a...
by rg12
Apr 29 2020 11:28am
Forum: Resources & EV Related Parts and Services
Topic: Battery Business Merge Idea...
Replies: 0
Views: 438

Battery Business Merge Idea...

I own a custom battery pack building business in Israel mostly focused on high powered high end systems https://www.powerpacks.co.il/gallery/%D7%92%D7%9C%D7%A8%D7%99%D7%94/ and would like to sell to the global market but it isn't possible to ship and also isn't affordable as long as I'm located in I...
by rg12
Apr 29 2020 9:50am
Forum: General Discussion
Topic: How To Measure Ring Terminals?
Replies: 4
Views: 230

Re: How To Measure Ring Terminals?

I see, that happened to me as well it never bothered me though. I don't know what wire AWG you have but I solved this by using a smaller lug and soldering the left over strands to the lug. You then add some heatshrink to the end and that's it :D But you can use AWG sized lugs of course you just hav...
by rg12
Apr 29 2020 4:28am
Forum: Battery Technology
Topic: BMS Testing?
Replies: 7
Views: 293

Re: BMS Testing?

Lol yes but lets look at what RG wants . Something to test: Over current protection ( needs source of overcurrent calibrated to a specific test value of both high and low amps for versatility.. ) LVC cut ( the ability to discharge test batt) HVC ( ability to have BMS stop the charge at a certain V)...
by rg12
Apr 29 2020 4:17am
Forum: General Discussion
Topic: How To Measure Ring Terminals?
Replies: 4
Views: 230

Re: How To Measure Ring Terminals?

It's the same metric style you are used to, just look at the second pic and you'll see. Also whats wrong with using metric lugs for AWG sized wire? There are lookup tables on google, simply choose the closest one that will fit. https://i.pinimg.com/originals/e6/22/68/e622684ca6555af7ef18b007c695f46...