Hi Newbie here.
I am attempting to build a portable back-packable solar recharger. I have a 12 volt 2.8 Amp Hr deep cell battery. I wanted to use this as a storage device to recharge 3000mAh Li-ion eighteen six fifty
batteries. Since you have been out of the USB / DC / Solar Lithium Ion/Polymer charger - v1.0 id 390 for awhile, I was wondering if the USB/DC Lithium Polymer battery charger 5-12V - 3.7/4.2v cells
ID: 280 would work? I intend to use your Large 6V 3.4W Solar panel - 3.4 Watt id 500 solar panel.
Any input or help would and be greatly appreciated.
Thank you for your time.
Jay
Solar charging Li ion batteries
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- adafruit_support_bill
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Re: Solar charging Li ion batteries
The solar charger is really the better choice. Using a conventional charger for solar charging typically only works in ideal conditions. Too much load or a passing cloud will cause the panel voltage to collapse and disrupt the charge cycle.
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Re: Solar charging Li ion batteries
Thank you. Any update on when the solar chargers would be back in stock?adafruit_support wrote:The solar charger is really the better choice. Using a conventional charger for solar charging typically only works in ideal conditions. Too much load or a passing cloud will cause the panel voltage to collapse and disrupt the charge cycle.
Jay
- adafruit_support_bill
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- Joined: Sat Feb 07, 2009 10:11 am
Re: Solar charging Li ion batteries
These sell out faster than we can make them. The best way to make sure you get one from the next run is to sign up for notification. You will get an email as soon as they are back in stock (but move quickly. They have been known to sell out in just a few hours!)
The good news is that we should have another pick& place machine on-line soon to increase our manufacturing capacity.
The good news is that we should have another pick& place machine on-line soon to increase our manufacturing capacity.
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- Joined: Fri Feb 08, 2013 2:09 am
Re: Solar charging 12v deep cycle
Hi,
I was also wondering if 2 of your Large 6V 3.4W Solar panel - 3.4 Watt ID: 500 solar panels would be enough to charge a 12v 2.5 amp hr deep cycle battery?
Thank you
Jay
I was also wondering if 2 of your Large 6V 3.4W Solar panel - 3.4 Watt ID: 500 solar panels would be enough to charge a 12v 2.5 amp hr deep cycle battery?
Thank you
Jay
- adafruit_support_bill
- Posts: 88093
- Joined: Sat Feb 07, 2009 10:11 am
Re: Solar charging Li ion batteries
I don't know a lot about charging lead-acid batteries. But I believe that two of those panels in series could handle it. You will probably need some blocking diodes to protect the solar panels from reverse current should they become shaded.
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- Posts: 11
- Joined: Fri Feb 08, 2013 2:09 am
Re: Solar charging Li ion batteries
Thank you for your helpadafruit_support wrote:I don't know a lot about charging lead-acid batteries. But I believe that two of those panels in series could handle it. You will probably need some blocking diodes to protect the solar panels from reverse current should they become shaded.
- easternstargeek
- Posts: 347
- Joined: Mon Dec 13, 2010 1:39 pm
Re: Solar charging Li ion batteries
The following link is for a very good source of reliable information regarding all things battery!
http://batteryuniversity.com/learn/
This link specifically addresses charging techniques for Lead-Acid batteries:
http://batteryuniversity.com/learn/arti ... id_battery
http://batteryuniversity.com/learn/
This link specifically addresses charging techniques for Lead-Acid batteries:
http://batteryuniversity.com/learn/arti ... id_battery
Please be positive and constructive with your questions and comments.