Hello,
I was looking at your minty boost and was wonder if you have the parts for my project or could help me with those parts.
Project:
I have a 13W solar panel that I want to plug into a USB port which will then connect to 8 AA rechargeable batteries (1.2 V 2500mA each) and would recharge 2 USB ports devises range from IPAD2 to Android phones
If possible a LCD to tell the what the voltage is on the battery bank and what the Solar panel is doing?
any help or suggestion would be appreciated.
Thank you
Ennio
Need help with a solar project
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- adafruit_support_bill
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Re: Need help with a solar project
What is the output voltage of your panel?
All of our chargers are designed for LiPo cells. But there are NiMH chargers available elsewhere. The 8xAA rechargeable cells would have to be separated into two 4xAA (4.8v) packs, since the maximum input to the MintyBoost is 5v. Monitoring battery and panel voltage is fairly straightforward with a microcontroller such as an Arduino.
All of our chargers are designed for LiPo cells. But there are NiMH chargers available elsewhere. The 8xAA rechargeable cells would have to be separated into two 4xAA (4.8v) packs, since the maximum input to the MintyBoost is 5v. Monitoring battery and panel voltage is fairly straightforward with a microcontroller such as an Arduino.
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Re: Need help with a solar project
I am currently building my solar panel each cell is .25W(80mA, 3.2V) I will have 60 cell in the panel.
- adafruit_support_bill
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Re: Need help with a solar project
3.2 * 60 = 192v. Are you wiring them all in series?each cell is .25W(80mA, 3.2V) I will have 60 cell in the panel.
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Re: Need help with a solar project
I have two thoughts on the build of the solar panel and your recommendation would be appreciated.
1) I would wire them together in groups of 4 cells in series to get about 12.8 Volts, and then wire the groups of 4 cells in parallel. I would divide the 40 cells into two groups of 20 and build a folding box to mount them in for a total of 10 watts
2) I would wire them together in groups of 5 cells in series to get about 16 Volts, and then wire the groups of 5 cells in parallel. I would divide the 50 cells into two groups of 25 and build a folding box to mount them in for a total of 12.5 watts
1) I would wire them together in groups of 4 cells in series to get about 12.8 Volts, and then wire the groups of 4 cells in parallel. I would divide the 40 cells into two groups of 20 and build a folding box to mount them in for a total of 10 watts
2) I would wire them together in groups of 5 cells in series to get about 16 Volts, and then wire the groups of 5 cells in parallel. I would divide the 50 cells into two groups of 25 and build a folding box to mount them in for a total of 12.5 watts
- adafruit_support_bill
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Re: Need help with a solar project
I think first you need to determine what the input voltage of your charger will be. That will determine what the output of your panel should be.
Then you need to consider adding blocking and/or bypass diodes to your panel to protect shaded cells and maintain efficiency of the panel when partly shaded.
http://www.oksolar.com/technical/diodes ... ystems.htm
Then you need to consider adding blocking and/or bypass diodes to your panel to protect shaded cells and maintain efficiency of the panel when partly shaded.
http://www.oksolar.com/technical/diodes ... ystems.htm
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Re: Need help with a solar project
I decided to make this panel
(I would wire them together in groups of 5 cells in series to get about 16 Volts, and then wire the groups of 5 cells in parallel. I would divide the 50 cells into two groups of 25 and build a folding box to mount them in for a total of 12.5 watts)
(I would wire them together in groups of 5 cells in series to get about 16 Volts, and then wire the groups of 5 cells in parallel. I would divide the 50 cells into two groups of 25 and build a folding box to mount them in for a total of 12.5 watts)
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- Joined: Tue May 28, 2013 2:15 pm
Re: Need help with a solar project
HI
I built my solar panel it is getting 22.5V and 6.25 amps
I would like to purchase a unit from you that will store power and recharge my Ipad-2 and Android phone
If you can guild me in the correct path I would appreciate it.
many thanks
Ennio
I built my solar panel it is getting 22.5V and 6.25 amps
I would like to purchase a unit from you that will store power and recharge my Ipad-2 and Android phone
If you can guild me in the correct path I would appreciate it.
many thanks
Ennio
- adafruit_support_bill
- Posts: 88093
- Joined: Sat Feb 07, 2009 10:11 am
Re: Need help with a solar project
That's an impressive output! Unfortunately, our solar charger is designed for a 6v panel.I built my solar panel it is getting 22.5V and 6.25 amps
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Re: Need help with a solar project
Sorry I made a mistake that was supposed to be 6.25 watts
Please be positive and constructive with your questions and comments.