Search found 8711 matches

by 999zip999
Aug 18 2019 8:05pm
Forum: Battery Technology
Topic: Testing a 10S 36 Volt BMS
Replies: 24
Views: 364

Re: Testing a 10S 36 Volt BMS

Get a 12v brake light to discharge high cell. If 36v use a hair dyer on low to drain pack if to high.
by 999zip999
Aug 18 2019 7:27pm
Forum: Battery Technology
Topic: Li-ion smart charger recomendation?
Replies: 12
Views: 157

Re: Li-ion smart charger recomendation?

As fipply said imax b6 mini, but you need a power supply buy as a combo. Check around lots of reviews.
by 999zip999
Aug 18 2019 7:07pm
Forum: Battery Technology
Topic: Li-ion smart charger recomendation?
Replies: 12
Views: 157

Re: Li-ion smart charger recomendation?

Can A dee Say. Youin the new for sale section there is a canada cell a little expansive but can a dee say money plus cheaper shipping and you can punch him in the nose in you don't like it. Or they IMR battery in Texas. Wait what kind of money ? How does that work out in China and usa ?
by 999zip999
Aug 18 2019 6:03pm
Forum: Battery Technology
Topic: Testing a 10S 36 Volt BMS
Replies: 24
Views: 364

Re: Testing a 10S 36 Volt BMS

Check your cell voltage and write down on paper like 1. 3.95v 2. 4.1v 3. 4.0v 10. Xxx volt Use a single cell charger and bring up the. Low cell to all are even like 4.1v You can use a phone Only if you seat a monitor the whole time without walking away. This so it doesn't over charge. Very dangerous...
by 999zip999
Aug 18 2019 5:45pm
Forum: Battery Technology
Topic: Li-ion smart charger recomendation?
Replies: 12
Views: 157

Re: Li-ion smart charger recomendation?

Buy good quality new cells from good supplier and you should not need to test. All from same manufacture and same batch.
by 999zip999
Aug 18 2019 2:12pm
Forum: Battery Technology
Topic: Testing a 10S 36 Volt BMS
Replies: 24
Views: 364

Re: Testing a 10S 36 Volt BMS

It's best to have all cells balance before hooking up bms. Bms is used to keep a balance pack in balance. Not for balancing a wonky pack. Even if at 4.1v before hooking up. Do you have a rc charger ? Most phone charger are to high. Don't trust the voltage printed on the side check.
by 999zip999
Aug 18 2019 1:51pm
Forum: Battery Technology
Topic: Paralell charging with a split coax Male to 2 Female 5.5 * 2.1 mm DC
Replies: 7
Views: 171

Re: Paralell charging with a split coax Male to 2 Female 5.5 * 2.1 mm DC

Yes geta second charger and charge them both at once. I disconnect the pos from controller first. I always unplug the pos.when not in use.
by 999zip999
Aug 18 2019 1:32pm
Forum: Battery Technology
Topic: "Mini Monster" 72V 120A 8Ah in a tiny package
Replies: 8
Views: 344

Re: "Mini Monster" 72V 120A 8Ah in a tiny package

Are those the ones you have for sale ? Do you want to combine the two with the mini ? How do those 72v 16ah work ? What cells are in those blue packs.
by 999zip999
Aug 17 2019 7:59am
Forum: Battery Technology
Topic: "Mini Monster" 72V 120A 8Ah in a tiny package
Replies: 8
Views: 344

Re: "Mini Monster" 72V 120A 8Ah in a tiny package

What's it running ? Do these always come with two copper tabs ?
by 999zip999
Aug 16 2019 11:18am
Forum: Battery Technology
Topic: Battery issues
Replies: 3
Views: 100

Re: Battery issues

a little more info please is it new is it used do you have a link to the bike
by 999zip999
Aug 15 2019 8:38pm
Forum: E-Bike Build Threads / Photos & Video
Topic: 27.5 plus mid drive
Replies: 24
Views: 2751

Re: 27.5 plus mid drive

How did you like that middrive ?
by 999zip999
Aug 13 2019 3:27pm
Forum: E-Bike Technical
Topic: A low-cost e-MTB Production log
Replies: 41
Views: 840

Re: A low-cost e-MTB Production log

I think you are ok and may need to have the mods move thread to the New for sale section. But only so many bike designs and a lot of it is execution. Welcome to E.S.
by 999zip999
Aug 11 2019 8:08am
Forum: Battery Technology
Topic: Questions about importing from China to US
Replies: 13
Views: 329

Re: Questions about importing from China to US

There is a usa supplier IMR battery in Texas I have not brought from them but prices seam good.
by 999zip999
Aug 10 2019 3:55pm
Forum: Battery Technology
Topic: Questions about importing from China to US
Replies: 13
Views: 329

Re: Questions about importing from China to US

Yes if as advertise 3p 90amp . they have ready made 3p 1s how much ? I wish 4p. Let us know how it works out.
by 999zip999
Aug 10 2019 2:59pm
Forum: E-Bike General Discussion
Topic: ŠKODA eBike Klement
Replies: 11
Views: 299

Re: ŠKODA eBike Klement

Ugly
by 999zip999
Aug 10 2019 2:31pm
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1233
Views: 213731

Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

New for sale section. Please must post prices.
by 999zip999
Aug 09 2019 4:53pm
Forum: E-Bike General Discussion
Topic: Help me develop the perfect throttle
Replies: 63
Views: 1233

Re: Help me develop the perfect throttle

Half grip is my favor as you hold on to a part of the handlebar and work the throttle with a finger or two. 30,000 ebike miles.
by 999zip999
Aug 08 2019 10:58pm
Forum: Battery Technology
Topic: AliExpress battery pack unboxing (for my eZuma project)
Replies: 183
Views: 8388

Re: AliExpress battery pack unboxing

The P.V. is 18fet and QS is 24fet. My guess. Good luck and keep up with your pack.
by 999zip999
Aug 08 2019 7:39pm
Forum: Battery Technology
Topic: AliExpress battery pack unboxing (for my eZuma project)
Replies: 183
Views: 8388

Re: AliExpress battery pack unboxing

Oh and how many fets ? On both ?
by 999zip999
Aug 08 2019 2:49pm
Forum: Battery Technology
Topic: AliExpress battery pack unboxing (for my eZuma project)
Replies: 183
Views: 8388

Re: AliExpress battery pack unboxing

Sorry ? You had a P.V.
controller and it was noisy ? That QS controller is huge. And how many fets ?
by 999zip999
Aug 08 2019 2:39pm
Forum: E-Bike Technical
Topic: Upgrading Prebuilt ebike to 48v or 52v?
Replies: 7
Views: 258

Re: Upgrading Prebuilt ebike to 48v or 52v?

If you look inside your controller at the caps and if they are 45v or 63v. The later can handle 52v. Maybe not your display thou.
by 999zip999
Aug 06 2019 5:01pm
Forum: Battery Technology
Topic: How to determine the current required to balance battery pack?
Replies: 14
Views: 372

Re: How to determine the current required to balance battery pack?

I would need a bms on the loaner bike and a set of sense wires for checking and balancing if needed.I have had a signalab bms kill a parallel set of cells. Over drain when resting.
by 999zip999
Aug 05 2019 10:22pm
Forum: E-Bike General Discussion
Topic: Noob expat in Sweden attempting a first build
Replies: 11
Views: 310

Re: Noob expat in Sweden attempting a first build

Baby bottle battery. No. Get a real battery that can support your needs. Or it will last 6mo to a year.