Batteries/Chargers/Holders

 

9v 800 mAh lithium USB Rechargeable Battery

Shaped like a normal 9v battery this unit provides approximately 8.2v at full charge and operates like any normal 9v battery cell. The only exception is that this unit is rechargeable! Plug in a micro USB port in the back to charge with your computer, the side indicator will show you the current charge of the unit. Please do take precaution and prevention from wire shortage and paying attention to polarity. Lithium batteries can explode from pressure, heat or voltage short.

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IMAX B6 LiPro Balance Charger + AC-DC Adapter

It is a very advanced smart charger for your LiPo/LiFe, NiCd and NiMH Batteries, capable of  managing 6S Li-ion/LiPo/LiFe and 15S NiCd/NiMH. The Display and straightforward controls make charging high volatile batteries safe and easy. Simply plug in a 12v DC power source up to a maximum of 5A on the right side and connect your battery with the balance cells (if needed) on the left side.

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US$2.79
This is a plastic single cell Battery Holder for a 26650 Polymer Lithium Ion Rechargeable Battery. Price is per single unit.
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US$11.90
These round high capacity cells have been mainly used in flashlight type applications but with the capability to be used as a drop-in rechargable cell at 3.7V with a current of 5000mAh. This is a great battery option for those of you who need a simple to install and replace cell with a lot of juice.
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US$13.94
When you plug the 18650 battery into the charger, it will show Red LED Light, and Green means in full charging condition.
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US$16.99
Charging slots is capable of monitoring and charging batteries independently. Additionally, yellow and red power/charging status indicator lights could visibly indicate battery status and charging process. It's as simple as insert, detect and charge.
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US$34.92
PowerBoost 1000C is the perfect power supply for your portable project! With a built-in load-sharing battery charger circuit, you'll be able to keep your power-hungry project running even while recharging the battery! This little DC/DC boost converter module can be powered by any 3.7V LiIon/LiPoly battery, and convert the battery output to 5.2V DC for running your 5V projects.
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US$0.48
# of Cells: 1. Battery Reference: ALL MANUFACTURERS, ANSI 15A,IEC LR6, NEDA 15,15C, 15D, 15F, 15M, 15NC, 221, 1101M, 1113M, 1306AP, 1306M, 1314M, 1606M. Cell Size: 9 VOLT. Finish/Plating: Matte Tin. Material: Steel. Mounting: THM. Type: CONTACT. 
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US$0.41
# of Cells: 1. Battery Reference: ALL MANUFACTURERS, ANSI 15A,IEC LR6, NEDA 15,15C, 15D, 15F, 15M, 15NC, 221, 1101M, 1113M, 1306AP, 1306M, 1314M, 1606M. Cell Size: 9 VOLT. Finish/Plating: Matte Tin. Material: Steel. Mounting: THM. Type: CONTACT.
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US$1.25
This is a PCB mount clip to hold a 18650 Lithium Ion Cell battery. Each battery holder is sold in single units, you’ll need two for each battery. These work great for larger, high capacity applications where a drop-in rechargable cell is needed.
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US$9.73
These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cell outputs a nominal 3.7V at 1000mAh! Comes terminated with bare wires.
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US$9.53
Ideally, this backpack is for use with the 3.3V Pro Trinket, so that the battery voltage (3.7V-4.2V) will get regulated down to 3.3V on the Pro Trinket board. However, many times, you can run a 5V Pro Trinket + accessories off of the ~4V from the LiPoly battery with no problem.
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US$21.88
Lithium ion polymer batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 2000mAh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteries.
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US$2.73
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 6V nominal.
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US$22.33
A smaller-sized rechargeable battery pack for your Raspberry Pi or Raspberry Pi B+ (or Arduino, or Propeller, or anything else that works with 5V!). This pack is intended for providing power to an iPhone, cell phone, tablet, etc but we found it does a really good job of powering other miniature computers and micro-controllers.
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US$5.28
9V Cell Battery Holder for one cell. Comes with alligator clips at ends. Sturdy plastic construction.
Dimensions: 2.16 inch (54.8 mm) X 1.19 inch (30.27 mm) X 0.31 inch (8 mm).
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US$3.50

AA Cell Battery Holder for two cells. With 5” lead wires, terminated by alligator clips. Comes with in-built switch to easily cut off current in experiments. The holder has a screwed-in cover, but can easily work without. Sturdy plastic construction. Dimensions: 2.69 inch (68 mm) X 1.5 inch (38 mm) X 0.69 inch (17.5 mm).

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