The spacers come in two sizes to make a AA into a C- or D-cell battery. ... For some of each, there is a package deal: Four C adapters and four D adapters for $20. (Yes, ...

The spacers come in two sizes to make a AA into a C- or D-cell battery. ... For some of each, there is a package deal: Four C adapters and four D adapters for $20. (Yes, ...

I actually found this article while looking to see if anyone sold adapters to put a lithium cell in the place of 2 D-cells. A battery pack with 2 18650’s in parallel would seem to be almost ...

The GoPro battery adapter is apparently the very first to support the powerful 18650 cell format and is capable of adding an additional three hours of HD recording per cell and are contained in a ...

Tethercell is an adapter that lets you control any AA battery-powered device with your smartphone. Turn on, tune in, shut down. This is what the app may look like.

Well, 8 D-Cell batteries in series will also make a 12-volt battery. ... For the linear fits for both sets of data, I get an internal resistance of 0.204Ω for the D-cell and 2.258Ω for the AA.

The Tethercell AA Smart Battery Adapter is a really simple idea. Replace one of the device’s AA batteries with this adapter, which takes a smaller AAA battery, and you can then switch it on and ...

He ditched the dual AA batteries inside of his Magic Trackpad and built a battery-sized adapter to feed it ... I did much the same as this to replace a AAA battery from an MP3 player with a D cell.