Hello, thanks for reply. Then, How can I charge the battery?
Do I use a bigger solar panel, 12v 10W or 6V 10W?
If I use a 12V solar panel then I have to adjust the output voltage of solar panel to connect the charger.
Thanks,
Regards.
Question about Solar Lithium Ion/Polymer charger - v1.0
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
-
- Posts: 15
- Joined: Wed Dec 05, 2012 5:10 am
- adafruit_support_bill
- Posts: 88093
- Joined: Sat Feb 07, 2009 10:11 am
Re: Question about Solar Lithium Ion/Polymer charger - v1.0
The battery will charge at the lower rate. Just slower.
You can use a larger panel. You can also connect multiple panels - but you should add blocking diodes to prevent reverse current through a shaded cell. Trying to regulate the voltage of a higher voltage cell would be inefficient.
You can use a larger panel. You can also connect multiple panels - but you should add blocking diodes to prevent reverse current through a shaded cell. Trying to regulate the voltage of a higher voltage cell would be inefficient.
- bridges_pdp
- Posts: 31
- Joined: Fri Oct 24, 2008 7:00 am
Re: Question about Solar Lithium Ion/Polymer charger - v1.0
I've read the info about setting the charge current but I'm confused. The Prog1 has a SMD resistor already in place that sets the current at 500ma. Adding a 2.2k resistor will, according to the page, set the current to about 950ma. Can someone tell me what configuration would provide for the maximum safe charge current?
Thanks,
Scott
Thanks,
Scott
- adafruit_support_bill
- Posts: 88093
- Joined: Sat Feb 07, 2009 10:11 am
Re: Question about Solar Lithium Ion/Polymer charger - v1.0
2K in parallel with the existing 2K will give you 1k. Or you can remove the existing SMT resistor and solder in a 1k
Please be positive and constructive with your questions and comments.