Subject:
|
Solar Ni-Cad Charging
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Wed, 17 Apr 1996 01:45:51 GMT
|
Original-From:
|
Sean Cunningham <sean@alice.=AntiSpam=msiconsulting.com>
|
Viewed:
|
2157 times
|
| |
|
|
I would like my robot to carry a solar cell for battery recharging. I have
not been able to locate a reference for any gotcha's with this plan, so here
goes:
I quote from the assembly manual:
[start quote]
The power supply provides between 12 and 15 volts to the charge circuit of
R11 and the Handy Board's 9.6 volt battery. There will then be a voltage
drop of about 2 to 5 volts across R11, yielding a charge current between 40
and 100 mA (milliamps).
[...] the standard charge rate of the battery pack is 50 mA.
[end quote]
So, my solar cell would need to be able to provide between 12 and 15 volts
at between 40 and 100ma. I have been able to locate a solar cell that
produces (in full light)
Volts: 15 to 17.5V
Current 80ma to 100ma
Would this be suitable? I realize I would need some kind of diode in series
to prevent battery discharging in darkness, but what else would I need to
do? Where would I attach the leads from the solar cell?
Sean R. Cunningham
MSI Consulting Group
http://www.msiconsulting.com/
|
|
Message has 1 Reply:
 | | Re: Solar Ni-Cad Charging
|
| Attach leads to same place the charger goes. + to +, - to -. Don't forget the diode. To be safe, monitor the current when the batteries are fully charged. Should not be more than 50ma. It is a good idea to cycle the nicad's about once a month. That (...) (29 years ago, 17-Apr-96, to lugnet.robotics.handyboard)
|
2 Messages in This Thread:
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
