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Easy Cheap Power Control, Distribution & Charging for Large Robot

Since I primarily build large robots, I have always had issues with power control, charging, & extending battery life. I use large gell cells and it seems like I was always either over-charging them or not charging them often enough and they would die prematurely.

It occurred to me last night that instead of trying to design & build my own power controller, (which I've always done in the past), that the answer to my problem might be as simple as an off-the-shelf unit designed for solar power systems.

In circuit charging of NIMH pack

I'll be putting together a 14.4v 5ah battery pack out of 12 solder tabbed C cells.  The raw voltage will be fed into a 100w step up DC-DC converter to supply 18v to a single board computer, and also to two

Can a 3,4V solar panel charge a 3,6V NiMH battery pack?

Can a 3,4V (open circuit voltage) solar panel charge a 3,6V NiMH battery pack?

Solar Battery Charging (2xAA)

I have searched the Internet for ways to charge batteries via solar energy. I know that I can charge a NiMH battery forever as long as the current doesn`t go over a tenth of the battery`s capacity (which is, in my case, 245mAh). Because I will be using two NiMH batteries connected in series I will use the following Photovoltaic module:  http://www.robotshop.com/ca/SP3-37-powerfilm-solar-cell.html. I guess that I`ll connect 2 of these in parallel which should give me 44mA.

Dual Cell Lipo Charging IC

Hey guys,

Can anyone suggest an IC that could be used to charge dual cell Lipo batteries (7.4V) with cell balancing? Ideally the IC would be powerful enough that it could charge even if the system is under a light load. I am looking for something similar to
the MAX 1555 IC (http://www.sparkfun.com/products/674) but for multiple cells. My google search has been fruitless - I must be using the wrong keywords. Thanks for any help!

solar trickle charger-solar engine

Hi, can anyone help?

I am trying to make my robot battery powered with trickle charge with two solar panels.

Avoid Obstacles, Search for charging station when battery is low.
Using a
This robot normally goes around avoiding obstacles and (sometimes) edges until its batter drops low. Then the robot goes towards a 38khz pulse instead of away from … Read more