Battery Holders / Adapter

$1.50  
11 pc(s)
Battery holder for single 18650 Lithium Ion batteries, terminated with ~150mm leads

$1.10  
21 pc(s)
Battery holder for single AA batteries, terminated with ~150mm leads

$1.85  
31 pc(s)
This 1xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover and an ON/OFF switch which can be used to control power to your project. The leads are about 150mm, and the last 5mm of them are tinned. Dimensions: 69 x 26...

$1.80  
10 pc(s)
Battery holder for double 18650 Lithium Ion batteries, terminated with ~150mm leads

$2.95  
7 pc(s)
Enclosed battery holder for double 18650 Lithium Ion batteries. This holder features a lid that slides over the batteries and snaps into place to fully enclose the battery. It also features a switch that lets you open and close the electrical connection between the batteries and the holder's...

$1.20  
125 pc(s)
Battery holder for two AA batteries, terminated with ~150mm leads

$2.05  
69 pc(s)
This 2xAA 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. The leads are about...

$1.20  
238 pc(s)
Battery holder for two AAA batteries, terminated with ~150mm leads

$1.40  
313 pc(s)
This 2xAAA Battery Holder with JST Connector is compatible with the BBC micro:bit. Supplied with ~150mm colour coded power leads and a JST connector at the end, this battery holder is light and can be attached to the back of BBC micro:bit cases. This battery holder features a lid that slides...

$2.25  
30 pc(s)
This 2xAAA Battery Holder with Switch and JST Connector is compatible with the BBC micro:bit. Supplied with ~150mm colour coded power leads and a JST connector at the end, this battery holder is light and can be attached to the back of BBC micro:bit cases. This battery holder features a lid...

$2.05  
200 pc(s)
Enclosed battery holder for two AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the cells. It also features a switch that lets you open and close the electrical connection between the batteries and the holder's leads. The leads are about...

$1.40  
27 pc(s)
This 2xAAA Battery Cage with JST connector is compatible with the BBC micro:bit. Supplied with colour coded power leads and a JST connector at the end, this battery cage is light and features a M3 mounting hole in the centre so it can be attached to the back of BBC micro:bit cases. The JST...

$2.70  
64 pc(s)
This tiny coin cell battery holder is ideal for small portable or wearable projects. It holds two 20mm CR2032 coin cells in series to generate 6V nominal. CR2032 tends to have about 220mAh capacity so this holder would give you 6V @ 220mAh with two cells. The holder is made of plastic...

$2.00  
5 pc(s)
Battery holder for three 18650 Lithium Ion batteries, terminated with ~150mm leads

$1.70  
44 pc(s)
Battery holder for three AA batteries, terminated with ~150mm leads

$2.70  
68 pc(s)
Enclosed battery holder for three AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the cells. It also features a switch that lets you open and close the electrical connection between the batteries and the holder's leads. The leads are...

$2.35  
65 pc(s)
Enclosed battery holder for three AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the cells. It also features a switch that lets you open and close the electrical connection between the batteries and the holder's leads. The leads are...

$2.20  
2 pc(s)
Battery holder for four 18650 Lithium Ion batteries, terminated with ~150mm leads

$1.95  
55 pc(s)
Battery holder for four AA batteries, terminated with ~150mm leads

$3.50  
10 pc(s)
This is a simple 4 cell AA battery holder. The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel jack connector. The connector mates with the barrel jack on the Arduino Uno (among a number of other products) allowing you to easily make your project...

$2.95  
54 pc(s)
Enclosed battery holder for four AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the battery. It also features a switch that lets you open and close the electrical connection between the batteries and the holder’s leads. The leads are...

$4.20  
8 pc(s)
This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover and an ON/OFF switch which can be used to control power to your project. The cable is terminated with a standard 5.5x2.1mm, center positive barrel jack...

$2.75  
78 pc(s)
Enclosed battery holder for four AAA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the cells. It also features a switch that lets you open and close the electrical connection between the batteries and the holder's leads. The leads are...

$2.10  
53 pc(s)
Battery holder for five AA batteries, terminated with ~150mm leads

$2.20  
43 pc(s)
Battery holder for six AA batteries, terminated with ~150mm leads

$3.20  
26 pc(s)
Enclosed battery holder for six AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the cells. It also features a switch that lets you open and close the electrical connection between the batteries and the holder’s leads. The leads are...

$3.95  
14 pc(s)
This is a simple Battery holder for eight AA cells arranged as two back-to-back four-cell holders. The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel jack connector. The connector mates with the barrel jack on the Arduino Uno (among a number of other...

$3.90  
6 pc(s)
Enclosed battery holder for eight AA batteries. 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. The leads are...

$4.90  
6 pc(s)
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 is good for running electronics that have a 5V voltage regulator (thus requiring a 7V+ supply) or perhaps some motors or solenoids....

$2.50  
11 pc(s)
This is a simple Battery holder for eight AA cells arranged as two back-to-back four-cell holders.

$2.40  
2 pc(s)
This 9V battery holder allows your battery to snap in tight and holds it in place, which is great in situations where you don't want the battery just hanging. It also has three mounting holes so you can attach it securely to your enclosure. It is terminated with a 150mm leads

$3.10  
31 pc(s)
Enclosed battery holder for 9V battery. This holder features a lid that slides over the batteries and snaps into place to fully enclose the battery. It also features a switch that lets you open and close the electrical connection between the batteries and the holder’s leads. The leads are...

$4.20  
46 pc(s)
This is a 9V battery pack with on/off switch and terminated with a standard 5.5x2.1mm, center-positive barrel jack. Use this to battery-power your Arduino or other electronic projects. Battery & screw not included. Dimensions : 68mm x 33mm x 21mm Lead length: 12cm...

$1.90  
57 pc(s)
9V snap connector wth hard shell that is built stronger to last longer. Comes with color-coded wire leads. Great for replacements or projects. Length: ~ 15cm

$1.50  
26 pc(s)
Classis 9V snap connectors with color-coded wire leads. Great for replacements or projects. Length: ~ 15cm

$2.95  
345 pc(s)
This 9V Snap to 2.1mm Barrel Jack Adapter provides the ability to conveniently use a 9V battery to power many common boards and modules such as the popular Arduino and compatible microcontrollers. This plug is a common barrel type with an outside diameter of 5.5mm and an inside diameter of...

$4.90  
84 pc(s)
This is a simple cable that adapts from a USB port to a 5.5x2.1mm barrel connector, center positive. This cable allows the user to use a USB port on a computer, laptop, or on our cigarette power supply to provide our development boards with 5V. The USB specification limits current...

$4.50  
78 pc(s)
This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm, center-positive female barrel jack. If you have a power supply with a barrel jack and want to plug it into a breadboard, this might be the simple solution.

$4.50  
82 pc(s)
This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm, center-positive male barrel jack. If you need to connect bare wires to a barrel jack on an Arduino or a development board, this might be the simple solution.

$1.20  
41 pc(s)
This female barrel jack plug is great for adding a common connector to the end of wires. This jack is compatible with 5.5x2.1mm barrel connectors. The outer shell unscrews to reveal solder terminals and a crimp strain relief. The outer shell has strain relief as well.

$1.20  
159 pc(s)
This barrel jack plug is great for adding a common connector to the end of our wires. This jack is compatible with 5.5mm barrel jacks that have a 2.1mm center pole diameter. The outer shell unscrews to reveal solder terminals and a crimp strain relief. The outer shell has strain relief as well.

$1.20  
59 pc(s)
DC power jack / connector. This is a common barrel-type power jack for DC wall supplies. These are compatible with our DC wall supplies and have a 5.5mm jack, with a 2.1mm center pole diameter.

$4.50  
29 pc(s)
Add a power switch to any project simply by plugging this between the power supply. This is the most useful thing you never knew you needed! You'll want to pick up a bunch for your electronic projects. Comes with a 5.5/2.1mm barrel jack on one end an a plug on the other. In between is an...

$2.70  
21 pc(s)
This tiny coin cell battery holder is ideal for small portable or wearable projects. It holds two 20mm CR2032 coin cells in series to generate 6V nominal. CR2032 tends to have about 220mAh capacity so this holder would give you 6V @ 220mAh with two cells.

$5.50  
15 pc(s)
Keep your power source safe with these waterproof 2xAA battery holders. The case has a rubber gasket around the edge of the case to keep out dust, dirt, and water so your batteries remain protected regardless of the weather conditions. The battery holder is secured by four screws and hexnuts....

$6.50  
13 pc(s)
Keep your power source safe with these waterproof 4xAA battery holders. The case has a rubber gasket around the edge of the case to keep out dust, dirt, and water so your batteries remain protected regardless of the weather conditions. The battery holder is secured by two latches. It...

$18.90  
1 pc(s)
The watertight battery holder holds 3 AA batteries and has o-ring seals at both ends. It also has a universal mounting that can either strap to a pole (such as a bike frame) or screw to a flat surface.  It has 2 pairs of power leads coming from the main body and two mating connectors as...