USB Battery Pack - 1000 mAh

Power on the go? Why didn't you ask? We've got plenty! These portable, rechargeable lithium-polymer battery packs are simple, compact and make for a great way to power your widgets in the field. Best of all, they're dead simple to operate: Just connect your device to the USB-A port on the battery pack and press the power button. An LED will alert you to the charge level of the battery and start powering your device. The battery pack will turn off on its own when your device stops drawing power from it. To recharge the battery pack, just plug it into your computer or phone charger using a USB micro-b cable.

This particular battery pack has a 1000mAh capacity and will source 700mA at 5.5VDC.

Note: This item may take longer to process due to battery installed in the equipment and therefore does not qualify for same-day shipping policy. Sorry for any inconvenience this may cause.

  • 13.5 x 54.2 x 65mm
  • Charging IC Datasheet
  • [MSDS]( Ion Battery MSDS.pdf)

USB Battery Pack - 1000 mAh Product Help and Resources

Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

1 Electrical Prototyping

Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
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Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Member #503652 / about 7 years ago * / 1

    Has anyone figured out what the minimum load would prevent the auto-shutoff "feature" kicking in ? I had assumed a 1000mAh lipo would be ideal for my application (it draws no more than 250mAh) so I would get ~4 hours of runtime on a full charge. But no luck - it runs for a few seconds & then shuts down :-( I know a larger load may work but how much larger? More to the point, a bigger load is not only a waste of energy but will shorten the run-time. Any input would be appreciated.

  • Katscan / about 8 years ago / 2

    Is there a trick to getting the battery to shut off? The button works to power it on but no ammount of pressing or holding will it turn off. I have to remove the USB cable before it will turn off. Is this supposed to happen?

    • PointyOintment / about 8 years ago / 2

      That may not be your desired behavior, but it's how every USB battery pack I've used or seen works, so I don't think it indicates a defect. I suppose you could add a normally closed pushbutton to the USB V+ line to serve as an off button.

  • Doughball / about 10 years ago / 2

    Does anyone know if this can be used as a uninterrupted power supply (UPS)? I want to run my circuit off this, then if the power goes out, have it run off the charged battery. When the power comes back on, the internal battery would charge back up.

    • PointyOintment / about 8 years ago / 1

      If it works like one of the USB battery packs I have, yes. If it works like the other one I have, no. It depends on whether its input and output are usable simultaneously. One of my packs (Justin 5,200 mAh) can supply current while it's plugged in; the other (Justin 10,000 mAh) turns off its outputs while it's plugged into power. So… I don't know. Maybe. It's on sale right now, too, so you could just buy it and see for yourself if nobody who knows shows up.

  • sparkpsychedelic / about 10 years ago / 2

    I actually have two questions 1. Can this work as a LiPo recharger? I mean, like If I was to get another 1S LiPo and then toss it in? (Also thinking of just what if I wanted to replace the LiPo inside in the future) 2. Does this have a cut-off circuit? That is, if the device draws and draws power will the pack "shut down" before it reaches the minimum Voltage before it explodes or whatever?

  • TheMoogle / about 10 years ago / 2

    Have you cracked open one of these yet to see what type of battery these have in them? An Internals photo would be nice to see. I purchased something similar from china on ebay with a mini solar panel, when I opened it up I was shocked to find it had no fuse or thermal protection on the batteries.

    • we have. it's made by the same people who make our batteries, so they have the same lipo battery that we sell inside.

  • Member #480346 / about 8 years ago / 1

    This works great along with the USB microB Cable to power my arduino yun.

  • Member #564943 / about 9 years ago / 1

    I bought this to run an Electric Imp and it shuts off after a few seconds. If you hold the power switch in it stays on though. I guess I can replace the momentary switch with a toggle. Pretty disappointing.

    • PointyOintment / about 8 years ago / 1

      USB battery packs stay on while the current being drawn is above some threshold value. It sounds like your Electric Imp isn't drawing enough current for the battery pack to think anything is connected.

  • Member #447569 / about 10 years ago / 1

    This pack works with raspberry pi model B?

  • Member #256401 / about 10 years ago / 1

    I realize this sounds like a stupid question, but how do you use this?

    At first I thought I had a bad battery, but SparkFun sent a replacement and it behaves the same way:

    1) The power pins always show a 0.17V drop, even shortly after charging. 2) After fully charging (according to the indicator light) and then letting it sit for an hour and plugging back into the charger, the indicator shows it is dead. 3) It doesn't have any switches or buttons or other obvious reasons it wouldn't supply power. 4) It doesn't seem to be a load sensor either, because the battery doesn't respond to small resistors or my phone.

    Did I miss something? Or is it just another junk battery from China?

  • FrankM / about 10 years ago * / 1

    My 1000mAh pack ( PRT-11358 ) arrived Saturday and I just plugged it in to my laptop. So far, so good, but I did notice that the LED is very dim, to the point of being nearly invisible in my normal office lighting. Admittedly this is a case where low LED power drain is a good thing, but the problem seems to be with the "viewing port" in the button it's stuck behind; I can see the LED burning brightly when I look into the USB "OUT" port.

    Which might be more difficult once I have something plugged into that port. <grin!>

    Obviously you can't fix the unit I have, and I don't plan on returning it, but it would be nice if you could pass this information back to the manufacturer so they could improve on it for"USB Battery v1.1".


  • sidusnare / about 10 years ago / 1

    I am using this to drive a blue-tooth RS232 module, it isn't enough power to keep it from auto shutoff, anyone know a way around this?

    • unfortunately you would have to get a higher power battery pack. I would suggest that you get the 6600mah battery pack from here at sparkfun but you can also get the 2000mah one and that one should work. either one will work though.

  • BigHomie / about 10 years ago / 1

    Has anyone tried hacking this charger and adding a higher power lion batt? like this one perhaps

  • MRSHKO / about 10 years ago / 1

    I'm really confused by this product. The charging IC is a linear charger, but what is producing the 5V? Either this has 1) a switching power supply or 2) it has 2S batteries and it is regulated to 5V. Anyone at Sparkfun know? You said you opened it. Does it have an inductor in there?

    Has it been tried on an iphone?

    • MRSHKO / about 10 years ago / 1

      Ok, answered my own question. It has a switching supply. Take a look at the tear-down picture in the 2A version.

      Still don't know if it has the resistor strappings to work with an iphone though

      • MRSHKO / about 10 years ago / 1

        I just received the lipo charger. It works for both iphones and blackberries. Joy!

  • I'm having the sam problems with the bigger battery. Adding a load resistor should work, but its also a waste of power and you might need to heatsink. Till I have time to open this thing up I just plug my phone into one of the open ports to charge. That draws enough current to keep the battery on. I use the second port to power my project.

Customer Reviews

5 out of 5

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Caveat hacktor

Some feedback --- bought two of these to power a couple of ESP8266 parts; works fine. As noted by others, these have a boost converter that will waste the power if left on so they have a shutoff circuit that powers down at some minimum load. A quick-n-dirty test of mine showed that with a 75 Ohm load (~66mA) they stayed on while a 100 Ohm load (~50mA) they shut off. YMMV*.

I performed no capacity test but assume they are close to their ratings of 1 AH or so.

One thing I also did not test and this is a far more critical test than capacity is whether or not they shut off at low battery. Lipo's die if discharged too far so this is worth doing; if I do, I'll update this.

All in all, quite happy with this product so far.

*What is the metric equivalent of YMMV? "Your kilometrage may vary"?