This is a 9V battery pack with on/off switch and a pre-attached 5.5mm/2.1mm center-positive barrel plug. Use this to battery-power your Arduino (or other electronic .. read more Learn More

This battery holder connects 3 AAA batteries together in series for powering all kinds of projects. Adafruit spec'd these out because the box is slim, and 3 AAA's add .. read more Learn More

This is an incredibly simple one cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlights first, which is fair since that is what they have been primarily used for. However, with this battery holder you will gain the ability to incorporate 18650 cells into applications like robotics or prototyping by simply dropping one into this device and attaching the leads, that’s it. Learn More

Make a nice portable power pack with this 4 x AA battery holder. It fits any alkaline or rechargeable AA batteries in series. There's a snap on cover and an on/off .. read more Learn More

Make a portable power brick with plenty of juice! Use Alkaline AA's for a 12V 3000-4000mAh power supply, or rechargeable NiMH for 2000mAh 9.6V supply. Either one .. read more Learn More

Here's another addition to Adafruit's growing family of AA battery holders. A holder for three (3) AA batteries! It's got an 8" long power cable with a 2.1mm DC jack at .. read more Learn More

This is a unique two-cell AA battery holder built specifically for the BBC micro:bit. The 6" (~150mm) cable has been terminated with a JST-PH connector. Learn More

Sure, your flashing, chip-tune playing T-shirt is really cool at the party… but at some point you need to turn it off. And yes, you could just pull the battery, or maybe you’ve even sewn a LilyPad slide switch in-line. Wouldn’t it be nice if there was just a switch on the battery? Well, look no further. Learn More

Enclosed battery holder for three AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose them. It also features a switch that lets you open and close the electrical connection between the batteries and the holder’s leads. Learn More

Enclosed battery holder for two AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose them. It also features a switch that lets you open and close the electrical connection between the batteries and the holder’s leads. Learn More

This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. Learn More

This is a simple coin cell battery holder that can enclose two CR2032 batteries inside itself, and safely kept closed via two phillips head screws. Each battery holder will run batteries in series, output up to 6V, and is equipped with an On/Off slide switch and two 6" power wires (one positive and one negative) on the back. Learn More

This is an incredibly simple two cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlights first, which is fair since that is what they have been primarily used for. However, with this battery holder you will gain the ability to incorporate 18650 cells into applications like robotics or prototyping by simply dropping one into this device and attaching the leads, that’s it. Learn More

I found these high-quality battery clips. They're molded plastic so they wont tear like cheap clips, and they cover the battery terminals to prevent shorts. Comes .. read more Learn More

This battery holder can hold 6 AA battery which can make 7.2 V rechargeable battery pack from NiMH / NiCd cells or 9V battery pack from alkaline cells. Learn More

Simple 4 Cell AA Battery holder with 5" tinned leads, square configuration. Learn More

This tiny coin cell battery holder is ideal for small portable or wearable projects. It holds two 20mm coin cells (2032 are the most popular size) in series to generate .. read more Learn More

Keep your power source safe and toasty in these waterproof 3xAA battery holders. They're just like classic switched battery holders, but designed for survival! The .. read more Learn More

Two x AA Battery Holder in Compact Mounting, with wire connector Learn More