Review: Sony NP-F970 AA Battery Adapter
Rechargeable batteries are mostly a blessing, but can also be a curse. If you lose one or forget to charge it or forget to bring it, you can really be up a creek without the proverbial paddle. The worst case scenario is that your last battery dies and will not be ready again for hours. If only you could rush off to the store for an over-the-counter replacement...
This is the idea behind a new back up battery, the Falconeyes BB-6. It is the empty shell of a clone Sony NP-F970 rechargeable battery (which I use to power my camera, monitor and LED lights), that allows you to fill it with six AA batteries. AA batteries are almost anywhere and super easy to obtain. If your last battery dies and you have no AAs, a quick trip to the drug store will get you back recording a lot faster than waiting for a recharge.
Of course, nothing is perfect and this cheap solution has one glaring issue that I point out in the video. It's easily solved with a little effort (using these), but may keep some from trying it. That's unfortunate, because I can see this helping a lot of people who have lost their paddle.