Nothing wrong with using analog current meters if you have them already my problem with using them is finding one that 50 mil volts range instead of 75 mil volts ones sometimes analog meters are more expensive than digital ones are but you have problems finding 50 mil volts range ones very few digital meters are not very adjustable for more than half voltage and the most other wise you have to have to X it by a certain amount to get the right scale to much work yea you can use a micro controller to the math but then you have to know how to the calculation
-
https://batteryhookup.com/products/n...-2900mah-cells
One note these battery packs are below 10 volts and the BMS protection board has locked them off from having any voltage on the BMS output wires I have tested three of them so far and voltage is around 8 volts it not an issue because it testing about 9.2 amp hours
The price of this offer has gone up sense I bought these two boxes
I bought two boxes of these batteries but there is a catch to the these battery packs
The BMS protection board does work but it... -
Help please with identification of few components for troubleshooting (Solar Water Fountain circuit)Need some help please with a few components on this small board so that I can troubleshoot the circuit.
The PCB is a Single sided board fairly simple circuitry has a +ve and -ve Solar cell power input, a 7.4v 1500mAh (dual 18630 cell) power in which the Solar panel charges the cells, and lastly the Output goes to a DC connector...
J1 is actually 1P1T Switch (in ON position completes Battery cell circuit
J2 - to DC Output
J3 is Battery cell connector
however I am struggling to identify if:
Y1 (SOT-23) are NPN Transistors, MOSFET's or 11v Zener's.... -
I want to know if I could hook up a solar panels to this boost converter would I have any issues doing and I would have issues what would they be
Adjustable Boost Power Supply DC-DC Constant Voltage Current Charging Module
https://www.ebay.com/itm/116497313155?var=416785404161
Here are some of the description from the eBay seller
The main parameters:
1. Product name: High-power non-isolated DC boost module power supply.
2. Product model: 100A2000W.
3. Input voltage: DC12V-60V.
4. Input current: 100A (maximum).... -
Print your own Solar Panels !!
https://www.youtube.com/watch?v=mtj194NpPYo
Printing solar cells
https://www.youtube.com/watch?v=ctCtkVL29Vg
New Materials for Solar Cells with Record-Breaking Efficiency
https://www.youtube.com/watch?v=HEgYLOoE5MQ
Transparent Solar Panels | Michigan State University
https://www.youtube.com/watch?v=qMhdpWMDp04
Printing Solar Panels in the Backyard
https://www.youtube.com/watch?v=vAmwaNwu5XM -
LED Solar Flood Light Dusk to Dawn Security Wall Street Yard Outdoor Lamp modifications are in orderI bought one about a month ago from an eBay seller who now is out of stock however I found another eBay seller that has the same version of this device so I think about buying a few more of over a period of time
Awhile back I bought some A123 brand 18650 battery cells that are 3.2 volt battery cells that I am going to use in this device for more running time in a florescent bulb fixture that I gutting out the tube sockets and turn it into a solar powered LED lighting fixture instead
Pictures will come later when I have the lighting fixture gutted and have the battery...
Comment