u/Why_Be_So_Difficult

Pic attached. All the other fuses can be pulled with white fuse puller, but it doesn't fit the main fuse and it doesn't have test points.

So today I was unable to start my 2021 MT09SP after stopping the engine while leaving it powered on for about 10 mins. I tried push starting it, using external battery, all to no avail. The crankshaft seemed to turn a little, but then it stopped and there was just some kind of clicking sound somewhere from around the battery.

At first I thought this was a fuse box, so I opened it up, only to discover nothing resembling fuses inside. I closed it back and tried starting the bike with external battery again. This time it started without any problems.

Something similar happened a month ago, but then I blamed a running fan with a stopped engine for supposedly draining the battery. And on that occasion I was able to push start it on like a 7th try.

The bike has been bought used and imported from Japan if it helps. I cannot seem to find this part anywhere in owner's or service manual. Online search returns nothing sensible.

Anyone know what this is and if it can realistically cause these kinds of problems?