Hi Walter, thanks for your positive feedback. The batteries are shipped in half charged state, so they should be charged up with the supplied charger. It is very important to use the included charger to charge the battery - if you connect a regular power supply to it, the LiPo battery will overheat and be destroyed.
The red LED is a simple pilot light that indicates that the power switch on the battery is on. There are red/green status lights on the charger itself that indicate the state of charge (charging -> red, charged->green).
If you are using our standard radio motors, keep in mind that the radio is constantly 'listening' for a remote command, so the battery is being constantly drained (about 30 mA of standby current). Thus it is a good idea to keep the charger connected to the motor. It only needs a very thin wire because it is providing only a small trickle charge.
We also have an ultra-low standby motor (0.03 mA) for solar powered blind applications. Here is our web page with a motor comparison table:
http://rollertrol.com/tubular-motor-comparison-tableIf I can be of further assistance, please contact me anytime.
Regards, Adrian
Adrian Biffen
Systems Administrator
RollerTrol Automation Systems
http://RollerTrol.com/