USB Battery Pack for Raspberry Pi - 4000mAh - 5V @ 1A

SKU: ADA1565 Brand: Adafruit

Retired Product

Replaced by: CE07374

This product has been replaced by: CE07374
This product is no longer available. This page is only for reference.

A medium-sized rechargeable battery pack for your Raspberry Pi (or Arduino, or Propeller, or anything else that uses 5V!). This pack is intended for providing a lot of 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. If you want even more power, Adafruit have a 10,000mAh power pack with two USB ports that can provide up to 2A! Adafruit tested it with an iPhone 5 & 5s so they know it will charge those models. It isn't good for charging large tablets that need 2A charging current such as the iPad.

Inside is a 4000mAh lithium ion battery, a charging circuit (you charge it via the USB cable attached), and a boost converters that provides 5VDC up to 1 Amp via a USB A port. The 1 Amp output is key for when you want to power the Pi, wifi adapters, maybe even small displays. Adafruit hooked it up to a 2.5" NTSC display (powered from the Pi's 5V breakout lines), wireless keyboard/mouse and a small WiFi dongle and it hummed along just fine as a mini computing setup!

The charging circuit will draw 1A from a 5V supply (plug a microUSB connector into the pack and then to a computer or wall adapter). You can charge and power something at the same time but there's ~80% efficiency loss on both ends so if you charge it at 1A and draw 1A at the same time, the battery pack will eventually go empty. However, if you're powering something thats 500mA or less, you can keep it topped up no problem. Also, when you start and stop charging the pack, it will flicker the output, this can cause a 'power sensitive' device like the Pi or an iPhone to reset on the power supply. If using it with a low current load, say under 100mA, the pack may 'fall asleep' - you can use this circuit to keep the pack awake

How long it will last depends a bit on what you have connected. Adafruit ran a 'headless' pi (no keyboard, mouse, display attached) with a mini WiFi adapter plugged into the USB port and pinged it once a second to keep the network connection from going to sleep and it lasted 7 hours. There is a 4-step LED charge status display which you can turn on/off with the button. However, the button is not a general on/off for the entire pack! There's no way to turn off the pack, as long as something is plugged in, it will power it. If you need a USB power switch, check out this item

Comes with the battery pack and a micro-B cable that you can use for charging the pack or powering a device with a micro B port.

Revision History: A previous version of this product was 4400mAh. As of June 10, 2016 the shipping version is 4000mAh

USB Battery Pack for Raspberry Pi - 4000mAh - 5V @ 1A (8:36)

Technical Details

Dimensions: 1.91" x 3.5" x 0.8" / 48.6mm x 89.7mm x 21.4mm
Weight: 126.7g (no cables)

This product is listed in:

Retired

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Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

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$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

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