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USB / DC / Solar Lithium Ion/Polymer charger - v2
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

USB / DC / Solar Lithium Ion/Polymer charger - v2

by flavy on Sun Feb 21, 2016 4:47 pm

Dear Adafruit,

For an upcoming science experiment, I will be making a model home run on solar energy. I will be buying a solar panel and a Lithium-Ion battery pack to be placed in my rc car. This will represent an electric car. This will connect to the USB / DC / Solar Lithium Ion/Polymer charger to represent an electric car being charged. My main problem is that I would also like to connect a fan as well that runs on a miniature motor. This motor however must connect to the charger. What is the electricity output which it should connect?

Here is the motor:
http://www.vetco.net/catalog/product_in ... oCCxTw_wcB

And here is the charger:
https://www.adafruit.com/products/390

flavy
 
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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by adafruit_support_bill on Sun Feb 21, 2016 5:17 pm

That is a 12v motor. The output of the charger at the "Load" terminals will range from 3.2v (nearly drained battery with no solar input) to about 6v (maximum solar input). The motor may run OK on 6v, but probably not well at all on battery voltage. You should either find a lower voltage motor, or a boost converter that can provide 12v. www.pololu.com has a selection of boost converters thay may work for you.

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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by flavy on Sun Feb 21, 2016 6:39 pm

Dear, Adafruit
Thank you for responding to my post. I was not aware of this flaw. I do have one more problem. I am not sure what the red and black connector that goes into product 390 is called. I would like to know so that I may either weld this to my motor or find a motor that comes with this attached. I am quite new to this kind of thing so excuse my lack of knowledge. Please respond soon.

flavy
 
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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by adafruit_support_bill on Sun Feb 21, 2016 7:29 pm

The red lead is the positive voltage. The black lead is the negative voltage. Most DC motors will run connected either way. If you need to reverse the direction of rotation simply reverse the leads.

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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by flavy on Sun Feb 21, 2016 7:34 pm

Thank you. Do you know what the connector itself is called?

flavy
 
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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by adafruit_support_bill on Sun Feb 21, 2016 8:28 pm

That is a JST PH series connector.

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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by flavy on Thu Mar 03, 2016 7:35 pm

I just sent an email regarding my order. Can someone please respond ASAP!

flavy
 
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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by flavy on Thu Mar 03, 2016 9:11 pm

My son is working on a solar power project for science fair. We are trying to create the project on the following page: https://learn.adafruit.com/usb-dc-and-s ... ly-charger. We want to connect an remote-controlled car using one of your battery packs but I am not sure which one is AA batteries. I need a pack of two AA batteries. I will also connect a miniature motor in the link here: http://www.hometrainingtools.com/motor- ... 0-5-6-volt?
Which Adafruit products do I need to complete this?

flavy
 
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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by adafruit_support_bill on Thu Mar 03, 2016 9:51 pm

The solar charger will not work with AA batteries. It is designed for use with LiPo batteries. We have them in various capacities: https://www.adafruit.com/categories/138

That motor should be able to run directly from the LOAD outputs of the solar charger. So you would need just the panel, solar charger and a LiPo cell. This one has about the same capacity as a pair of AA cells. https://www.adafruit.com/products/2011

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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by flavy on Fri Mar 04, 2016 8:42 pm

We purchased the following items from you guys:
1 x Lithium Ion Battery Pack - 3.7V 4400mAh[ID:354] = $19.95
1 x Medium 6V 2W Solar panel (2.0 Watt) [ID:200] = $29.00
1 x USB / DC / Solar Lithium Ion/Polymer charger (v2) [ID:390] = $17.50

How do we connect the following to the items we purchased or can we?

RC like this -http://www.amazon.com/Maisto-Ferrari-Italia-Control-Vehicle/dp/B004KAASWG/ref=sr_1_9?s=toys-and-games&rps=1&ie=UTF8&qid=1457137753&sr=1-9&keywords=rc+car&refinements=p_85%3A2470955011

flavy
 
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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by adafruit_support_bill on Sat Mar 05, 2016 6:30 am

Not sure. The product description is inconsistent. In one place it says that the vehicle requires 2xAA cells. In another place it says that it requires 4xAA cells.

If you have already purchased the car, how many batteries does it actually require?

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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by flavy on Sat Mar 05, 2016 1:57 pm

We ordered the car, but it has not arrived yet; expecting it tomorrow. I checked out another retailer's website and it said 4 AA for the car and 2AA for the remote control. We only need to use the solar power for the car.

Thank you!

flavy
 
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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by adafruit_support_bill on Sat Mar 05, 2016 2:30 pm

The panel itself will put out about 6v in full sun. The LOAD output of the solar charger will switch between the raw panel output and the battery output - depending on which is stronger. This means that the LOAD output will drop to about 3.7v when the sun goes behind a cloud.

Depending on how much current the car requires, you may be able to use something like the Verter to give you a steady 5v output: https://www.adafruit.com/product/2190

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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by flavy on Sat Mar 05, 2016 2:51 pm

This is all very technical and I do not understand. Can you please try to break it down further? I am trying to connect the RC car to a solar panel I already purchased from you guys. Please tell me what I need to purchase to make this all work?

flavy
 
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Re: USB / DC / Solar Lithium Ion/Polymer charger - v2

by adafruit_support_bill on Sat Mar 05, 2016 3:01 pm

We can't tell you that if we don't know what the power requirements of the car are.

The component discussed so far are capable of delivering up to about 1A. If your car does not draw any more than that, then you can use those components.

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Please be positive and constructive with your questions and comments.