Battery box on my LEGO train 60198 is flashing green and orange, then after few seconds it suddenly turns off itself.

I've tried resetting it by pushing the button on the train until it turns purple, but then straight away it starts flashing orange again. After that it turns off itself.

Please explain what is wrong with it.


LEGO guide shows the orange blinking appears when batteries are flat.

enter image description here.

Have you tried using fresh batteries in your train?

| improve this answer | |
  • Yes, all The batteries are new – user15039 Apr 3 at 18:57
  • I found following meaning for blinking colors: Purple: network has been erased (or hub is waiting for new firmware) Orange: low battery So purple means your controller and battery box are no longer paired and this doesn't effect your issue. However if you still see orange color blinking there seems to be low batteries somewhere (either controller or battery box/hub). I would suggest taking out ALL batteries from both controller as well as battery box/hub and changing to fresh batteries. Try not to mix and match different different brands. – Alex Apr 4 at 10:56
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    Your batteries should also be non rechargeable ones. Rechargeable ones might give a too low voltage even when fully charged (about 7.2 V instead of the expected 9V). If you are certain that the batteries are not the issue, you could contact lego support, they will issue you replacement parts... – Michael Verschaeve Sep 24 at 20:16
  • @MichaelVerschaeve does this come from experience? Because TLG is fine with rechargeable batteries and the following is included in instructions for 60198 under "Important information about batteries": "Rechargeable batteries must be recharged using the correct battery charger under the supervision of an adult. You cannot recharge batteries while they are still in the product, and you must never try to do so. Never attempt to recharge non-rechargeable batteries." – Alex Sep 25 at 15:20
  • @Alex, the 7.2V I'm certain, and also sure that for EV3's rechargeable batteries were detected too fast as empty so I'm assuming this might be the case for boost as well.There was a trick however, you could insert a paperclip in a hole for the EV3 to let it know you were using rechargable batteries. This hole was also pinned when using the lego battery that came with the educational versions of EV3. I do not know of such trick with boost. – Michael Verschaeve Sep 25 at 15:54

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