Battery Charging
Battery Charging
How long it takes to charge the battery? it is possible to put a cell phone battery to replace the one that comes and have a longer flight?
Re: Battery Charging
In my experience, charging the battery takes between 20-25 min going from completely empty (red LED on solidly) to completely full (green light on solidly) using a laptop's USB port.
The main problem with adding a bigger battery is that as they get bigger, they weigh more. This lowers the flight time as the motors spend more time giving maximum thrust. In addition, the extra weight affects your manoeuvrability - a bigger battery means longer flight times, but can't give the motors any extra power. For an extreme example, imagine using a laptop battery that weighs 500 g or more- you could run the Crazyflie for days off it, but you wouldn't be flying anywhere!
There are a few people that have found some good LiPo batteries that don't add too much weight and increase flight times. This thread describes using a Hyperion battery, while this one gives a great description of how to choose the best battery for the Crazyflie and where to buy the connectors.
Hope that helps!
The main problem with adding a bigger battery is that as they get bigger, they weigh more. This lowers the flight time as the motors spend more time giving maximum thrust. In addition, the extra weight affects your manoeuvrability - a bigger battery means longer flight times, but can't give the motors any extra power. For an extreme example, imagine using a laptop battery that weighs 500 g or more- you could run the Crazyflie for days off it, but you wouldn't be flying anywhere!
There are a few people that have found some good LiPo batteries that don't add too much weight and increase flight times. This thread describes using a Hyperion battery, while this one gives a great description of how to choose the best battery for the Crazyflie and where to buy the connectors.
Hope that helps!