Introduction

When one lifts GR16 from the ground, or fell from it on a way that the tilt shout-off does not turn off the motor quick enough, the over drain/over-current can some of the battery cell render to cut-off mode, resulting that the main-board halts.

Image 1/3: remove 6-8 screws, nothing fancy Image 2/3: New line. Image 3/3: Lift plastic cover, expect no obstaces
  • It's glued to the chassis, but relatively easy to remove.

  • remove 6-8 screws, nothing fancy

  • New line.

  • Lift plastic cover, expect no obstaces

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Image 1/3: Disconnect the small black gauge connector form the battery pack Image 2/3: Disconnect the small black gauge connector form the battery pack Image 3/3: Disconnect the small black gauge connector form the battery pack
  • Lift plastic cover to gain access to battery pack one. Disconnect the big yellowish connector.

  • Disconnect the small black gauge connector form the battery pack

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Image 1/2: The second battery has the same connectors, one for charge one for discharge, the are squeezed into the gap under the top of the chassis. Disconnect them both. Image 2/2: Once the batteries are fully disconnected, turn GR16 on, to discharge the on board capacitor fully.
  • The small black gauge connector is for charging the battery pack, the bigger yellow/orange is for discharging it.

  • The second battery has the same connectors, one for charge one for discharge, the are squeezed into the gap under the top of the chassis. Disconnect them both.

  • Once the batteries are fully disconnected, turn GR16 on, to discharge the on board capacitor fully.

  • Then reconnect the second, and the first battery pack. Expect some sparks when the yellow connectors are connected. Don't forget to connect both battery packs.

  • Turn on GR16 to check if it is working. Reassemble and fix the rubber cover with duck tapes :) or glue them on.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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Zsolt Kovacs

Member since: 12/05/2011

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