Unknown Battery Connector

[davidbitton]

The connector type for the battery is not published. What is the connector type? Thank you.

[Heltec-Aaron-Lee]

That's 1.25mm connector

https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-17001064404.9.7a36c72w3CJfz&id=558403816604

[davidbitton]

@Heltec-Aaron-Lee JST does not have a model "1.25". What is the p/n for the header on the board. I'll figure out the rest. Thanks!

[DeuxVis]

The female half in that lot is what you are looking for, just received and tested they plug fine. The seller call it "micro JST 1.25"...

[davidbitton]

@DeuxVis ok, so then can you tell me which battery (preferably on Amazon) to purchase? Also, that connector is not from JST. Look here at what I can find w/ a 1.25mm pitch.

[DeuxVis]

I haven't done any battery testing yet, but the guy who designed that printable enclosure has. Have a look in the comment section someone asked him about the battery model.

This said I tend to believe any single cell lipo should do. For reference some aliexpress seller pictures show a 1000mAh one used.

[stdunbar]

I'm using this board with this battery and, depending on your needs, I'm running for a couple of hours. The board came with the battery adapter and I just soldered it onto the existing connectors. What I'm still missing is how to read the battery charge state.

[davidbitton]

Is there something I need to do in order for the battery to work? Do I need to wire in a switch?

On Thu, Dec 14, 2017 at 10:40 PM Scott Dunbar notifications@github.com wrote:

I'm using this https://www.aliexpress.com/item/Lolin-ESP32-OLED-V2-0-Pro-ESP32-OLED-wemos-pour-Arduino-ESP32-OLED-WiFi-Modules-Bluetooth/32822105291.html with this battery https://www.adafruit.com/product/2750 and, depending on your needs, I'm running for a couple of hours.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/issues/5#issuecomment-351905162, or mute the thread https://github.com/notifications/unsubscribe-auth/AAQ61wvil7Fcjeyky4hEQ-C5jTooeb7Hks5tAepCgaJpZM4QsCic .

-- David B. Bitton Code No Evil, LLC Code Made Fresh Daily

[chrisdreid]

When I plug in a battery nothing happens... how do you get the battery to work?

[Solved] - I connected the a power supply at 3.5 volts to the + side of the micro 1.25 connector and the board worked as expected. The batteries I was trying before were reversed in polarity which I assume destroyed the ability to connect. So be careful to only hook it up after matching the polarities. You only get 1 shot

[davidbitton]

No idea. Never worked for me before.

On Tue, Jul 23, 2019 at 11:52 PM chris notifications@github.com wrote:

When I plug in a battery nothing happens... how do you get the battery to work?

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/issues/5?email_source=notifications&email_token=AACDVVZOJM35277WNOB4YRLQA7GWXA5CNFSM4EFQFCOKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD2VCXBY#issuecomment-514468743, or mute the thread https://github.com/notifications/unsubscribe-auth/AACDVVZSUYY2H4J2N2FDC2TQA7GWXANCNFSM4EFQFCOA .

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Code Made Fresh Daily.

[jimmybenz]

I think it’s a Molex PicoBlade, 1.25mm.

[mik00]

I think Jimmy is right. See this. https://www.mouser.com/datasheet/2/276/0532617002_PCB_HEADERS-1510014.pdf The picture shows a 4-pin, but the ...7002 appears to be 2-pin judging from the downloadable step model.