
Therefore I recommend those want to play your helicopter for a longer time to read this article. I can help you to change this situation. I will take Double Horse 9098 as an example. First of all you need to have one 9098, then buy an extra battery and prepare a Screwdriver, if you want to play for a much longer time, just buy more battery.

Firstly you need to use your Screwdriver to remove the screw as the photos shown below:

Then unlock a small button on the both sides of the 9098:

You can now easy to remove the canopy and see the connection of the battery and the helicopter.

Just disconnect the used battery and replace a fully charged one, lock the canopy and screw. You can now play an extra 15 minutes. The whole procedure just take about 2 minutes. Easy?

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