Reddit reviews HitLights 12V DC / 5V DC (USB) Rechargeable Lithium-Ion Battery Pack - 3500 mAh, Includes Charger - for LED Light Strips, Phones, and More

https://www.amazon.com/HitLights-Rechargeable-Lithium-Battery-Strip/dp/B007RQW5WG

I do all sorts of audio recommendations on /r/zeos and the only other speakers I recommend cheaper than these are the Dayton B652's which are larger than these but only $50. You can also grab the Lepai 2020 amp (which is also larger) for only $20 and since it is SO cheap and has smaller capacitors most normal battery packs will power it. Like the this one

So that is under $100 for all the main components you just have to work out the cutting board bits to accommodate it all.

say no to darkwads indeed!

http://www.amazon.com/Lemonbest%C2%AE-SMD-Water-resistant-Strip-Controller/dp/B00AJJDLHQ/ref=pd_rhf_ee_s_cp_3_EJR4?ie=UTF8&refRID=13024WDR4E6HZ39N5KHN

plus


http://www.amazon.com/HitLights-BATTERY3600-Rechargeable-3800mAh-Connector/dp/B007RQW5WG/ref=sr_1_1?s=hi&ie=UTF8&qid=1376871832&sr=1-1&keywords=12+v+battery+pack

I was working on something very similar yesterday. Yes you will need to power the servo's separately. I was able to get everything from Amazon yesterday. You will need a power supply. I bought a 12V power supply from amazon.

Battery Pack
http://www.amazon.com/gp/product/B007RQW5WG/ref=oh_aui_detailpage_o07_s01?ie=UTF8&psc=1

You will also need probably two dc-dc step down converters
http://www.amazon.com/gp/product/B00CXKBJI2/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

You can split these with a simple adapter and connect both of your step down converters
http://www.amazon.com/dp/B00NNL1YA8/ref=twister_B00NNL1XIG

You will wire the output from one converter to the one side of your breadboard and the other to the otherside. You probably want to separate the power from the pi and your servo's so that you don't get a voltage drop which could damage your pi. There are cheaper solutions to this like using a simple voltage regulator but you would give up 7v in heat. So it is recommended to get an efficient dc converter.

My 2cents

That's exactly what I did. The poster board is taped to the top of the back, and naturally falls a that curve. I'm using an LED strip I got off Amazon, cut into 3 sections (both side flaps and the top) and soldered them together with wire. It's a little overly bright for my purpose and has the white/blue kind of tint to it. But it works very well and runs off a rechargeable battery pack I also picked up from Amazon.

I got 12v battery packs. Hers the link:

HitLights 12V DC / 5V DC (USB) Rechargeable Lithium-Ion Battery Pack - 3500 mAh, Includes Charger - for LED Light Strips, Phones, and More https://www.amazon.com/dp/B007RQW5WG/ref=cm_sw_r_cp_api_8XmWBbR4ZEZE9

They run a long time - way more than trick or treating...in the off season I use them as my mobile phone chargers when I travel. They will juice up an iPhone to full at least 4 times.

You could use one of these;

https://www.amazon.com/HitLights-Rechargeable-Lithium-Ion-Battery-Pack/dp/B007RQW5WG/ref=sr_1_7?ie=UTF8&qid=1524793293&sr=8-7&keywords=small+12v+battery

Yep. I used a 12v Lithium Battery. Works pretty good. The power lasts for hours. Longer than my phone (8 month old s3)...

Amazon has a bunch of portable battery packs that put out 12 volts natively. They are cheap enough that it almost isn't worth building your own.


https://www.amazon.com/HitLights-Rechargeable-Lithium-Battery-Strip/dp/B007RQW5WG

This will be difficult because this is a very uncommon configuration.

I do know of a couple monitors made by DoubleSight which use USB for both power and video signal (rebranded and refurbished for $42 at tigerdirect), but because the video goes through USB it will require a little bit of CPU power. It's a non-issue even with my Core 2 Duo (same story with netbooks - not a problem), but I don't know if there's a driver or enough power in the Raspberry Pi for this. Touch screen could be a nice feature, and you don't even have to use it.

The next thing I could suggest which has some use would be a Lilliput (which specializes in small monitors, and will have the greatest selection of features and inputs) or other kinds of field monitors. Probably the only way to get something affordable will be to avoid HDMI, since at that price range you'll need something a little older.

Finally, if you really want to get your hands dirty, check out a Chinese monitor kit from eBay. You'll need to make your own case, but you may even have fun with that!

Edit: I also found a battery/charger which looks promising.

i bought one locally but this one on amazon looks like it might work https://www.amazon.com/HitLights-Rechargeable-Lithium-Ion-Battery-Pack/dp/B007RQW5WG/

[Here is a better option] (http://www.amazon.com/HitLights-Rechargeable-3800mAh-Lithium-Connector/dp/B007RQW5WG/ref=sr_1_1?s=hi&ie=UTF8&qid=1405311237&sr=1-1&keywords=12v+lithium+battery), in my opinion. Or [this] (http://www.amazon.com/Portable-4500mAh-Rechargeable-Battery-Wireless/dp/B008UKKXRC/ref=cm_cr_pr_product_top) I would also take a look at building your own battery pack [similar to this] (http://www.amazon.com/ExpertPower%C2%AE-3500mAh-Extended-Battery-iRobot/dp/B007V6UL1Y/ref=sr_1_95?ie=UTF8&qid=1405311619&sr=8-95&keywords=14.4v+battery). The first two look like they might even plug right into your amp.

Heck even [this] (http://www.amazon.com/12v-Standscan-Battery-Power-Pack/dp/B00BTGTJPG/ref=sr_1_4?s=electronics&ie=UTF8&qid=1405312250&sr=1-4&keywords=12v+portable+battery) would work better and be cheaper/lighter if you put some rechargeables in it.

I would want any battery pack around 12-15V. I would also consider getting a [cheaper amplifier] (http://www.amazon.com/LP-2020A-Lepai-Tripath-Class-T-Amplifier/dp/B0049P6OTI/ref=pd_cp_e_0). It uses the same amp chip (ta2020) as the one you posted

Edit: Essentially, I wouldn't want to carry around 7 pounds of lead acid batteries when I could carry much lighter batteries to do the same job.

The problem is that most 12V DC devices draw a lot of power (like your heated jacket) and so because of that the batteries with that kind of output are all on the larger side. This is the smallest one I could find on Amazon.