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2 x 18650 Battery Holder with DC2.1 Power Jack
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Price: $3.10
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DFRobot Item #: FIT0538 -

The 18650 lithium battery is a commonly used lithium battery in electronic products. It is often used in batteries of laptop computers and power banks. 18650, which refers to a battery with a diameter of 18mm and a length of 65mm.This 2 x 18650 battery holder has inner connection in series, DC 2.1 power jack, standard 7.4V output. You can connect Arduino directly.|Features|ABS shellThe spring plate is nickel plated with stainless steel.The material structure is firm and durable.|Specification|R...

3 x 18650 Battery Holder with DC2.1 Power Jack
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Price: $4.14
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DFRobot Item #: FIT0539 -

The 18650 lithium battery is a commonly used lithium battery in electronic products. It is often used in batteries of laptop computers and power banks. 18650, which refers to a battery with a diameter of 18mm and a length of 65mm. This 3 x 18650 battery holder has inner connection in series, DC 2.1 power jack, standard 11.1V output. You can connect Arduino directly.|Features|ABS shellThe spring plate is nickel plated with stainless steel.The material structure is firm and durable.|Specification...

6xAA battery holder
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Price: $3.96
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DFRobot Item #: FIT0266 -

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.It comes with a 15mm (0.59") Red & Black Wires with side by side connection. |Specification| Cell Quantity: 6 Battery type: AA Material: Plastic Storage temperature: 25&;#39;C (77F, RoomTemperature) Max Operate temperature: 80&;#39;C (176F) Size:57x90x16mm (2.24x3.54x0.63")?|ShippingList| 6xAA battery holder x1 ...

6xAA Battery Holder with DC2.1 Power Jack
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Price: $4.31
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DFRobot Item #: FIT0141 -

This battery holder can hold 6 AA battery which is able to become a 7.2 V rechargeable battery pack from NiMH / NiCd cells or 9V battery pack from alkaline cells.It comes with a DC2.1 Powerjack which can plug to Arduino directly.|Specification| Cell Quantity: 6 Battery type: AA Storage temperature: 25&;#39;C (77F, RoomTemperature) Max Operate temperature: 80&;#39;C (176F) Dimensions: 93x57x15 mm(3.66x2.24x0.59") Distance between mounting holes: 76mm(2.99") Mounting holes diameter:...

Battery Capacity Indicator
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Price: $19.67
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DFRobot Item #: FIT0466 -

Sometimes battery information is not readily available or is hard to understand at a glance. Our Battery Capacity Indicator is a user friendly indicator interface that you can use in your projects. via GIPHY|Specification| Working voltage: 3.3V-5.5V 8 levels of brightness Size: 42*24*8mm/1.65*0.94*0.31 inches|Documents| Product Wiki |ShippingList| Battery Capacity Indicator x1 ...

Battery Holder 2xAAA with Cover and Switch
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Price: $2.61
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Sparkfun Item #: PRT-09543 -

"This 2xAAA battery holder puts a nice finishing touch on your battery powered project. This holder features a sliding, removable cover as well as an ON/OFF switch which can be used to control power to your project. The leads are about 150mm long, and the last 5mm of them are tinned. Dimensions: 63 x 25 x 15mm"

Battery Holder with Switch - 2 x AA
Price: $1.00
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Elecrow Item #: EL-PSB00202B -

    The 2 x AA Battery Holder with Switch 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 145mm, and the last 5mm of them are tinned. It is series connection.Specification 2 AA batteries With a cover and fixed screw With a ON/OFF switch ...

Battery Holder with Switch - 3 x AA
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Price: $1.81
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Elecrow Item #: EL-PSB00302B -

    The 3 x AA Battery Holder with Switch 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 145mm, and the last 5mm of them are tinned. It is series connection.SpecificationBattery Type : AABattery Qty : 3With Cover : YESWith Switch : YESHolder color :...

Battery Holder With Switch - 4 x AA
Price: $2.00
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Elecrow Item #: EL-PSB00402B -

    The 4 x AA Battery Holder with Switch 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 145mm, and the last 5mm of them are tinned. It is series connection.Specification 4 AA batteries With a cover and fixed screw With a ON/OFF switch ...

Button Cell Battery Holder (with batteries - 4.5v)
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Price: $1.71
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DFRobot Item #: FIT0337 -

This small capsule is a 4.5V button cell battery holder for mini power solutions.Its minimalism design in clean white cylinder body and matte surface makes it an elegant power capsule in your projects. It also includes 3* LR44 cell battery to make sure that you can start right away the moment it arrives. Use this small battery holder to drive our wearable MCU--Cheapduino |Specification| Material:Plastic Color:White |ShippingList| Button Cell Battery Holder x1 LR44 cell battery x3 ...

Lithium Battery Charger
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Price: $20.69
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DFRobot Item #: DFR0208 -

If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The Lithium Battery Charger can charge 3.7V LiPo battery at a rate of 500mA per hour. It is designed to charge single-cell Li-Ion or Li-Polymer batteries. Check the datasheet below to see if it will work with your battery. The board incorporates a charging circuit, status LED, connector for your battery (JST-type used in the batteries we carry), and a micro-USB connector. Four small mounting holes...

Maxlife AA Alkaline Batteries, Pack of 4
Price: $6.47
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MK-Misc Item #: BATAA-A4 -

Maxlife AA Alkaline Batteries, Pack of 4Features and benefits Long lasting alkaline formula. For everyday and high drain devices. Long shelf life. No mercury or cadmium. Specifications Battery Power Type Alkaline Brand Name Maxlife Cell Size AA Package Quantity 4 Rechargeable No Voltage (V) 1.50 Safety Date sheet can be found here ...

Maxlife Alkaline Batteries 20 Pack Green
Price: $13.66
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MK-Misc Item #: BATAAA-A -

Maxlife Alkaline AAA size batteries.Features and benefitsLong lasting alkaline formula.For everyday and high drain devices.Long shelf life.No mercury or cadmium.SpecificationsBattery Capacity (mAh) 1,200.00Battery Power Type AlkalineBrand Name MaxlifeCell Size AAAPackage Quantity 20Rechargeable NoVoltage (V) 1.50Perfect for Edison RobotsWe ran Maxlife and Nicad batteries in an Edison robot continuously driving it in a big circle and these are the results of how long they lasted.Green generic...

Maxlife CR2032 Lithium Button Cell Battery
Price: $2.76
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MK-Misc Item #: BAT2032 -

Maxlife CR2032 Lithium Button Cell BatteryMaxlife CR2032 is a 3.0 volt lithium button cell battery for powering a variety of portable devices including watches, PDAs, calculators, keyless remotes, and all your E-Textiles projects!Safety Date sheet can be found here

MicroUSB Battery Holder (3xAA)
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Price: $2.76
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DFRobot Item #: FIT0362 -

This battery holder can hold 3 AA batteries which provides 3.6V rechargeable battery pack with NiMH / NiCd cells or 4.5V battery pack with Alkaline cells. You will be able to power your Arduino with this battery holder via MicroUSB interface directly. |Specification| Cell Quantity: 3 Battery type: AA Cable length:130mm(5.12") Material: Plastic Storage temperature: 25&;#39;C (77F, RoomTemperature) Max Operate temperature: 80&;#39;C (176F) Size:57x48x15mm(2.24x1.89x0.59")|ShippingList| MicroUSB...

SparkFun Power Cell - LiPo Charger/Booster
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Price: $34.69
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Sparkfun Item #: PRT-11231 -

"The PowerCell board is a single cell LiPo boost converter (to 3.3V and 5V) and micro-USB charger in one. The board comes with a JST connector for a single cell LiPo battery, a micro-USB connector for the 5V charge input, and selectable 3.3V and 5V output pins (labeled ‘out’). There are also two charge pins broken out (labeled ‘charge’), so you can use another 5V power source to charge the batteries, if you don’t have a micro-USB cable. We’ve also broken out...

Uh-oh Battery Level Indicator Kit
Price: $10.35
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Sparkfun Item #: KIT-11087 -

Uh-oh Battery Level Indicator Kit Description: Under-powering a digital device can sometimes have pretty nasty consequences. Brown-out conditions can cause memory to get written or overwritten in odd ways, can cause unexpected behavior in connected systems and just generally screw up your day. One way to avoid this is to keep an eye on your battery voltage and turn off the system before it gets too low (or plug it in). We've whipped up a little board to help you out with this...