Hello from Brooklyn, NY

jaimeb82

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Joined
Feb 25, 2021
Messages
4
Hi, my name is Jaime and I am new to batteries and cells, found out about power walls in youtube with a guy named jehugarcia and in his channel he mentioned you guys? I bought some cells from battery hookups and 4 flare chargers, I am opening them up and running the norm test that charges, discharges and charges. I am very new so I have tons of questions!!! Good to be here!
 

floydR

Active member
Joined
Aug 23, 2017
Messages
992
Welcome to lithium anonymous.
4 flare chargers? never heard of them oh Zanflare
Later floyd
 

jaimeb82

New member
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Feb 25, 2021
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4
Hi floyd, yeah made a mistake is the zanflare C4, I got two, and then two more since they only operate the Norm Test at 500mAh. Then today I got 4 more of the other brand that I saw recommended in the internet LittoKala lii 500? not sure the name is right, but this one can do the norm test at 1000mAh, I purchased 450 cells from a guy on craigslist from old Compaq presario laptops and some other HP packs, it takes a long time to open the battery packs, but it is also fun! My guess after I purchased the cells was that maybe the compaq cells are a bit old but since I have 450 I am testing to see if they get to 4.20v and then I am storing them in a box to test voltage in two weeks? if voltage goes down, kind of bad cell, that's what I am hearing here also for some of the searches I have done.
 

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floydR

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Aug 23, 2017
Messages
992
I use Opus BT-C3400 which is the Opus BT-C3100 with updated firmware. The LittoKala lii 500 only charges at 1000 mAh from what I read discharge is 500 mAh. Battery hook up and battery clearing house are my two main sources for 18650s and other products. I don't really have the patience to open laptop packs any more.
later floyd
 

italianuser

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Joined
Feb 25, 2020
Messages
83
Hi there and welcome to you Jaime :DLast night I stayed awake 'till 4.30AM to make my (first) rechargeble box 18650-based; I'll be using them on all the sensor boxes I'm putting around the house!

Enjoy!
 

jaimeb82

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Joined
Feb 25, 2021
Messages
4
Hi there and welcome to you Jaime :DLast night I stayed awake 'till 4.30AM to make my (first) rechargeble box 18650-based; I'll be using them on all the sensor boxes I'm putting around the house!

Enjoy!
That sounds amazing, I am also up opening boxes and watching movies or youtube learning about cells, I have at least 5 project in my mind already, but I fell the learning curve is not easy and I should take it one step at the time. I ordered a bunch or PCB boards that can connect together to create power packs, I also have a BMS that will work with those pub boards, and a few other things that came with this KIT. We will love to see a picture of your first project italianuseer!

Best Jaime!
 

italianuser

Member
Joined
Feb 25, 2020
Messages
83
Yes, take you time, meanwhile you could start buying all that little stuff you need to manage you project.

I started off with a few things and then I ended up buying a LOAD of things online (I love AliExpress for my prototyping stuff), these were my first buyings:
- 18650 battery supports;
- a better tester for DC voltage/current (for now I bought a 20$ RichMeters RM303 with 0.05% accuracy on DC voltage, what I need the most, one day a lovely Fluke may be on my desk!);
- a couple of variable voltage boards (DC-DC converters) for quick tests/charging/powering up some or another device;
- connectors, xh2.54 for low current and xt30/xt60/else for higher currents;
- wires, AWG26 for little currents, AWG18 for my 1 or 2 amps, etc;
- a support for soldering and new soldering tips, flux and different diameter tin.

All for a bunch of $ online... :love:yes, I want to learn chinese!

Here, I'll show my last-night-project, it's the base for something bigger. I will share it in the Project section of the forum soon:

WhatsApp Image 2021-02-27 at 19.17.17.jpeg
Bottom-Left: my Arduino boards collects data from sensors around the house (water level in the tank, temperature, humidity, and soon voltages/current from solar and batteries); and sends data out to the web using an ESP8266 WiFi.
Top: a smaller board, an ATTINY85 collecting temperature and humidity and sending it to the Arduino board.
Right: my small battery box with a voltage display and a switch to display the current value.

Love it! :D
 

jaimeb82

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Joined
Feb 25, 2021
Messages
4
That looks cool! I bet you can make a small humidity reader to put inside acoustic guitars to read humidity inside the guitars? I was shopping for one of those humidifiers for acoustic guitars once and they are expensive ! love the house project! Very advance stuff here!!

Cheers!
 

italianuser

Member
Joined
Feb 25, 2020
Messages
83
LOL thanks... well, advanced stuff are those mega-walls you see in the forum! For a guitar?!? Ehm yes! But consider the DHT-22 sensor I use isn't so precise, here's a very nice study done by kandrsmith. So, as soon as you're ready do open a new thread with your projects (and/or questions!).

:)
 
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