These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest …

This is a very small, extremely light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest e…

These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest …

These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest …

The PowerCell board is a single cell LiPo boost converter (to 3.3V and 5V) and micro-USB charger in one.  The board c…

This is a very small, extremely light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest e…

If you need to charge LiPo batteries, this simple charger will do just that. It is designed to charge single-cell Li-Ion o…

If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The LiPo Charger Basic is str…

If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The USB LiPo Charger is a bas…

If you need some juice, this 6Ahr triple pack is for you. These are very slim, extremely light weight batteries based on t…

CR2032 Lithium metal 3V 250mAh button cell battery. Great for powering low power processors or blink an LED for weeks at a …

This handy kit includes both our USB charger and an 850mAh LiPo battery. The USB LiPo Charger is a basic charging circ…

The LiPower board is based on the incredibly versatile TPS61200 boost converter. The board is configured to be used with a…

This charger accurately balances and charges Lithium Polymer, LiFe (A123), NiCd and NiMH batteries. It will handle LiPo/LiF…

Power on the go? Why didn't you ask? We've got plenty! These portable, rechargeable lithium-polymer battery packs …

The NCP1402 is a 5V DC-DC converter. This breakout board will accept voltage inputs between 1 and 4 Volts and output a cons…

This 9V battery holder allows your battery to snap in tight and holds it in place, which is great in situations where you …

LiPo batteries are a great way to power your projects. They're small, lightweight, and pack a pretty good punch for th…

This 2xAAA battery holder puts a nice finishing touch on your battery powered project. This holder features a sliding, remo…

 This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removabl…

This is a simple 4 cell AA battery holder. The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel…

 This solar charged battery pack is the size of a cell phone but packs a 0.6W solar cell, charging circuit, boost conv…

This high discharge LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for an…

This is an extremely tiny and light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest ene…

A really cool rechargeable Lithium Ion coin cell battery. The battery is rated for 3.6V @ 110mAh - a great way to run a sma…

The NCP1402 is a 3.3V DC-DC converter. The breakout board will accept voltage inputs between 1 and 3 Volts (such as 1 or 2 …

CR1225 lithium metal 3V 12mm 47mAh coin cell batteries. Perfect small battery for miniature sensor node applications. D…

Basic 20mm coin cell holder. Posts can be inserted into 0.1" perf board! Holds the common CR2032 type batteries. D…

This high discharge LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for an…

 Rechargeable 9V batteries are cool, but chargers for them are not very common. This charger can charge 2 9V Li-Ion or…

This 3xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sli…

This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sli…

Classic 9V connector terminated with 2-pin polarized Molex connector. 5" in length.

Have you ever wanted your project to just "hibernate" until someone picks it up or moves it? It's a great str…

A SparkFun original Lithium Polymer charger. This little black box charges single cell lithium polymer batteries with a ma…

This high discharge LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for an…

This is a simple coin cell battery holder that can enclose two CR2032 batteries inside itself, and safely kept closed via …

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

Under-powering a digital device can sometimes have pretty nasty consequences. Brown-out conditions can cause memory to get…

This LiPo is a hardy little battery pack. They managed to pack a constant discharge rate of 25C into this battery. For its …

Power on the go? Why didn't you ask? We've got plenty! These portable, rechargeable lithium-polymer battery packs …

This is the CR2025 20mm coin cell battery. You may be wondering what sets this guy apart from the more common CR2032 coin c…

These are your standard 9 Volt alkaline batteries from Rayovac. Don't even think about trying to recharge these. Use t…

The is a wonderfully simple 5V power source from Bodhilabs. This PCB uses a source of 1.1V to 4.5V and generates 5V using a…

 This is the LIR2477 rechargeable lithium ion coin cell battery. The battery is rated for 3.6V @ 160mAh and comes stan…

Simple 4 Cell AA Battery holder with 5" tinned leads, cube configuration.

2500mAh 1.2V Nickel Metal Hydride 'AA' batteries. NiMH technology provides all the benefits of NiCads without the t…

This is a simple breakout board for our through-hole 24.5 mm coin cell holder. All you need to do is solder the tabs of th…

This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sli…

Need a simple and versatile battery charger? This one can charge 4 AA or AAA batteries at a time.  Or, you can use it…