Disadvantages:
1) Delivery time: 2.5 weeks since it was delivered from Hong Kong
Conclusion:
I use rechargeable batteries for model LiPo and think it makes sense to check the battery level while the model is in use. I usually attach the voltmeter to my Quadrokopter Balancer and fly around it. When the set of my minimum voltage is reached, the voltmeter Lautstark begins a beep from giving up, so I know that I have to end up with the model.
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