I have a Parrot Bluegrass that I want to start flying again. The problem? The batteries are depleted. I found out I /can/ rejuvenate them, but my understanding is that they are more likely to hold less charge AND more likely to catch fire. Naturally, I’d like to avoid that. So I want to get new batteries. Problem is, the chassis is fitted to these batteries. I’d prefer to get batteries with similar charge capacity(4S 6000+ mah) and similar dimensions (I’ll have to measure again later). I had found some in the past on GetFPV, but my bank wouldn’t let me put in a purchase with them, so I am looking at other options. Do yall have a good resource for batteries? The other option is 3D printing a custom chassis that is fit for the new battery, but I worry using a new battery would mess with the center of gravity. Is this a valid concern or am I overthinking this?