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6xAA Battery Holder with DC2.1 Power Jack
A 6×AA battery holder with a DC 2.1mm power jack that plugs directly into an Arduino's barrel jack input. Creates a 7.2V rechargeable battery pack from NiMH/NiCd cells or a 9V pack from alkaline cells. Features mounting holes for secure installation. Specifications Cell Quantity: 6× AA Output...
3 x 18650 Battery Holder with DC2.1 Power Jack
A robust battery holder designed to house three 18650 lithium-ion cells in series, delivering a nominal 11.1V output through a standard DC 2.1mm power jack. Ideal for powering projects, robots, and portable electronics that require higher voltage from rechargeable cells. The holder features a du...
6 x AA battery holder with 5.5mm/2.1mm plug
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A 6×AA battery holder with a 5.5mm/2.1mm DC barrel plug, ready to power Arduino boards and other electronics with a standard DC jack. Use alkaline AAs for approximately 9V at 3000–4000mAh, or rechargeable NiMH cells for 7.2V at ~2000mAh. The 9V alkaline output is ideal for boards with a 5V volta...
2 x 18650 Battery Holder with DC 2.1mm Jack
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This battery holder takes two 18650 lithium cells and connects them internally in series for a standard 7.4 V output. It is a simple way to power electronics projects from common 18650 cells, such as those used in laptop battery packs and power banks.The holder includes a DC 2.1 power jack, makin...
6xAA Battery Holder with DC connector
A simple 6-cell AA battery holder with a 125mm (5") cable terminated with a standard 5.5×2.1mm centre-positive barrel jack connector. Creates a 7.2V rechargeable battery pack from NiMH/NiCd cells or a 9V pack from alkaline cells, ready to plug directly into devices with a standard DC barrel jack ...
Camcorder Battery Holder/Adapter for Sony NP-F750 w/ DC Jack
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A snap-in battery holder for Sony NP-F series camcorder batteries, with a pre-attached 2.1 mm DC barrel plug for powering 7 V DC devices. Clip in a compatible Li-Ion battery pack and connect directly to robots, Arduino projects, LED panels, or any device with a standard DC jack — no soldering or ...
4x AA Battery Holder (with Power Switch, DC2.1 Jack, and Cover)
A compact 4×AA battery holder with a built-in on/off power switch, DC2.1 barrel jack output, and a protective cover. Ideal for powering Arduino, Raspberry Pi, and other microcontroller projects with a portable 6V supply. The holder accepts four standard AA batteries (1.2V rechargeable or 1.5V al...
6xAA Battery Holder(double layer)
A double-layer 6×AA battery holder with a stacked 3+3 cell arrangement for a more compact footprint. Creates a 7.2V rechargeable battery pack from NiMH/NiCd cells or a 9V pack from alkaline cells. Comes with 150mm (6") red and black wire leads. Specifications Cell Quantity: 6× AA (double layer...
4 x AA Battery Holder with 2.1mm Plug
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A 4×AA battery holder with a 20cm (8″) power cable terminating in a centre-positive 2.1mm DC barrel jack. Provides a portable power source for development boards and projects that accept a standard DC barrel jack input. Delivers approximately 4.8V with NiMH rechargeable batteries or up to 6V wit...
4 x AA Battery Holder with 2.1mm Plug and On/Off Switch
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A 4×AA battery holder with a built-in on/off switch and a 13cm (5″) power cable terminating in a centre-positive 2.1mm DC barrel jack. Provides convenient portable power with easy switching for development boards and projects that accept a standard DC barrel jack input. Delivers approximately 4....
5 x AA Battery Holder with 2.1mm DC Jack
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This 5×AA battery holder delivers approximately 7.5V from five AA batteries, terminated with a 2.1mm DC barrel plug (centre positive). It provides the ideal voltage for Arduino boards and other development boards with onboard 5V regulators, which typically need 1–2V of headroom above their output...
3 x AA Battery Holder with 2.1mm Plug
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A compact battery holder for three AA cells with an integrated power cable and DC barrel jack. The series configuration delivers approximately 3.6–4.5V depending on battery chemistry, making it a convenient power source for 3.3V microcontroller projects and portable electronics. The 200mm power ...
6xAA battery holder
A 6×AA battery holder with bare wire leads for creating 7.2V rechargeable battery packs (NiMH/NiCd) or 9V packs from alkaline cells. The holder features side-by-side cell placement and comes with 150mm red and black wires for easy connection. Specifications Cell Quantity: 6× AA Output Voltage...
2.1mm DC Barrel Plug to Alligator Clips
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Connect a battery pack or bare wires to any device with a 2.1 mm DC barrel jack input using this adapter cable. Colour-coded alligator clips (red for centre-positive, black for ring-negative) clip onto battery terminals or exposed wires, while the moulded 2.1 mm barrel plug feeds power straight i...
![USB / DC / Solar Lithium Ion/Polymer charger [v2]](/rails/active_storage/representations/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCuGJJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--b85aff0f8ca1916572b4810f2e10942652620529/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVHsHOgtmb3JtYXRJIghqcGcGOwBUOhJyZXNpemVfdG9fZml0WwdpApABaQKQAUkiCHB1cgY7AFRJIg52YXJpYXRpb24GOwBG--4cc5678865497cdbcf7b02aee5242eda5f847322/image_7c4e9eeb-07ad-410d-80b1-a75cea099e0a.jpg)
USB / DC / Solar Lithium Ion/Polymer charger [v2]
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This versatile LiIon/LiPo battery charger accepts power from three sources: a 6 V solar panel (via 2.1 mm DC jack), USB Mini-B, or a 5 V DC adapter. It features automatic charging current tracking that draws the maximum possible current from a solar panel in any light condition, providing near-MP...
Light and temperature data-logger pack
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This pack includes everything you need to build a light and temperature data logger with an Arduino. The Adafruit data logger shield records sensor readings to an SD card with real-time timestamps, while the included photocell and TMP36 temperature sensor provide light level and temperature measu...
8 x AA battery holder with 5.5mm/2.1mm Plug and On/Off Switch
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This 8×AA battery holder provides a portable power source with a built-in on/off switch and a standard 5.5 mm / 2.1 mm DC barrel plug for easy connection to Arduino boards, LED strips, motors, and other 12V devices. Use alkaline AAs for approximately 12V at 3000–4000 mAh, or rechargeable NiMH cel...
DC Barrel Jack Adapter - Male
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. Wi...
Kitronik LAB:bit educational platform for BBC micro:bit
Kitronik LAB:bit, the all-in-one laboratory for delivering KS2 computing in the classroom (8 - 11-year-olds). The Kitronik LAB:bit for the BBC microbit offers a super fun way for children to learn about coding in an engaging and hands-on way. It has been specifically designed for the classroom fo...
30 Piece 5.5 / 2.1mm to DC Barrel Jack Adapter Kit
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A comprehensive set of 30 barrel jack plug adapters that convert a standard 5.5mm / 2.1mm DC jack to a wide variety of other tip sizes. Perfect for powering devices that use non-standard barrel connectors from your existing DC power supplies, USB-C to DC cables, or battery packs. Each adapter pl...
