Thanks very much Keith.
I prefer to go with your recommendation for the LiPo and charger. Much more compact and neater than lead acid. I plan to use a speed controller with the fans, to tune out any vibration.
I hadn't thought too much about the effect of heat from the battery, but with the...
Hi Keith, and thank you for your interest.
Here are some more details.
This is a one off requirement related to my hobby. I have an astronomical telescope with a 14" primary mirror, which will be stored indoors and taken in the car for use at a dark sky site. In winter at this place, night time...
Hi Keith, and thank you for your interest.
Here are some more details.
This is a one off requirement related to my hobby. I have an astronomical telescope with a 14" primary mirror, which will be stored indoors and taken in the car for use at a dark sky site. In winter at this place, night time...
I need to source a small rechargable battery pack, of ideally 7 volts (12v max) with a capacity around 3 to 5 amp hours.
It will be used for several hours at a time, often in temperatures down to about minus 10 degrees C, and will need to be completely sealed since it will be in motion tilting...
