Can you reconnect strips in series 12+12=24V, then you can use boost dc-dc converter from your battery around 12V to stable 24V?
This arrangement will give you stable light that is not dimming during battery discharge. That's what I did with my emergency light - there is 6 strips with 3 LED each. I connected three of them in parallel (12V), connected other three in parallel(12V), and connected those 2 pairs in series which gives 24V. Then I bought this boost converter (about 3 USD) and it still works perfectly.

Answer from Sergii on Stack Exchange
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SignliteLED
signliteled.com › home › guide to power led strip lights with batteries
Guide To Power LED Strip Lights With Batteries - Custom LED Strip Manufacturer From China
A 12V rechargeable lithium battery for LED light strips, which has a nominal capacity of up to 38,400 mAh. Choosing the right LED strip light battery requires consideration of the following key factors to ensure that the battery can meet the ...
Published   April 1, 2025
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Ledbe
ledbe.com › led strip lights
2.7/4MM 12V Battery Powered Small LED Strip Lights
2.7/4MM 12V Battery Powered Small LED Strip Lights
The Small LED Strips are 2.7mm or 4mm Wide, with low power consumption, and can be powered by batteries, power banks, and UPS. Easy to install easily and add lighting in a small or limited space.
Price   $15.99
People also ask

Can I power a 12V LED strip with a 9V battery?
Yes. 12V LED strips can operate at lower voltages than they require but will be less bright. However, it should be noted that if the battery voltage is higher than the LED strip voltage, the LED strip will be permanently damaged.
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signliteled.com
signliteled.com › home › guide to power led strip lights with batteries
Guide To Power LED Strip Lights With Batteries - Custom LED Strip ...
Are battery-powered LED strips safe?
LED strips are safe when installed and used correctly, whether they are LED-powered or battery-powered.
 
Please be careful not to use higher voltages to power the LED strip, as this can damage the LED strip or even cause a fire.
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signliteled.com
signliteled.com › home › guide to power led strip lights with batteries
Guide To Power LED Strip Lights With Batteries - Custom LED Strip ...
Can I connect a 12V LED strip to a car battery?
A car battery is 12.6 volts or higher when fully charged. If the engine is running, the voltage will rise to 13.7 to 14.7 volts and drop to 11 volts when the battery is depleted. Due to the lack of stability, it is never a good idea to power a 12V LED strip directly from the car battery. Doing so will cause the strip to overheat and shorten its life.
 
Therefore, you cannot connect them directly but need a voltage regulator. Since you need 12V to run the LED strips, using a regulator will reduce the 14V battery voltage to 12V, making the LED strips safer. However, there is a problem. Whenever your car's battery voltage drops, the brightness of the LEDs may drop.
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signliteled.com
signliteled.com › home › guide to power led strip lights with batteries
Guide To Power LED Strip Lights With Batteries - Custom LED Strip ...
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LEDSupply
ledsupply.com › led-strips › battery-operated-led-flex-strip
Battery-Operated LED Light Strip
Low Voltage LED Strips 12V Strips Non-Waterproof (IP20) Waterpoof (IP65) Addressable (IC) RGB 24V Strips RGB+W 5050 LED (IP20) Zig-Zag 2835 LED (IP20) Tunable White COB LED (IP20) Sauna + Submersible (IP68) UV-C (IP20) COB Single Color (IP20) AC Plug-in Strip Lights Single Color Waterpoof (IP65) RGB Waterproof (IP65) LED Rope Lights Single Color Waterpoof (IP65) Accessories Mounting Track (Plastic) Specialty Strips & Kits   Battery-Operated 20-Inch Strip 1M Long Strip Kit 5M Long Strip Kit High-Temp.
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Reddit
reddit.com › r/led › would this simple setup work to power 12v led's for a light box off a battery?
r/led on Reddit: Would this simple setup work to power 12v LED's for a light box off a battery?
April 12, 2023 -

I'm looking to backlight a light box that will hang on a wall. Will be using some 12v LED strip lights. I'd like to run this off a rechargeable battery so it can hang without cables and/or a location without an outlet nearby. I'm not looking for hours and hours off battery life but a solid hour wouldn't hurt. This is just a personal project, it probably wouldn't see much regular use. So moving the box or occasionally running a cable to recharge doesn't bother me.

Would/could this be as simple as using something like this?

https://www.amazon.com/6800mAh-Rechargeable-Protable-Lithium-DC12680/dp/B074TC4XW4/ref=sr_1_9?keywords=12v+battery+pack+for+led+lights&qid=1684775364&sr=8-9.

If the barrel plugs happen to match up to a set of lights/controller I already have, cool. If not I have enough experience soldering to rig something up. Ideally I'll set it up using a wireless controller/remote that is common with LED strip lights. I've messed around with stuff like this before but it's always been wired directly.

If the battery makes this more complicated than I'm expecting, just let me know. Any simple (or complicated) advice would be appreciated.

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Boqiled
boqiled.com › how-to-power-led-strip-lights-with-batteries-an-in-depth-guide
How To Power LED Strip Lights With Batteries: An In-Depth Guide - boqi LED Driver & Controller
November 7, 2024 - LED strip lights can be powered by batteries by using compatible battery packs that match the LED strip’s voltage, typically 12V or 24V.
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Wired4Signs USA
wired4signsusa.com › wired4signs usa › rechargable 12v/24v lithium-ion battery pack for led strip lights
Rechargable 12V/24V Lithium-Ion Battery Pack for LED Lights
March 24, 2022 - This rechargeable Lithium-ion battery pack is the ideal portable replacement for standard AC powered LED drivers. This high-capacity rechargeable battery pack offers 12V DC and 24V DC outputs for maximum compatibility with your LED strip lights ...
Find elsewhere
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Superlightingled
superlightingled.com › dc12v-addressable-led-strips-c-5_491.html
12 Volt LED Light Strips Addressable - SuperLightingLED
Low power addressable led 12V strip light like 12V WS2812B 2020 can run up to five meters in length by battery power, suitable for DIY and temporary lighting decoration projects, calculating how long battery operated 12V strip lights can run for: Running time in hours = Battery capacity in ...
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Reddit
reddit.com › r/led › recommendations on powering 12v light strips with a 5v battery pack
r/led on Reddit: Recommendations on powering 12v light strips with a 5V battery pack
June 4, 2022 -

Hello friends :)

Before I start please know that I don't know anything about power, volatge or amps, so apologies if some of these questions don't make complete sense :)

I'm thinking of adding some LED strips to a costume for a party that's coming up and needed some advice. I already played around with adding two Govee 5v strips to a costume and powering them with my 20100 mAh Anker battery and it's been working really well.

However, these 5v strips are pretty short (6ft each - assuming it's because the 5v battery can only power so much strip?) so I'm thinking of using a longer strip, but anything longer than 6ft seems to be 12v.

I found this DC 5V to DC 12V USB Voltage Step Up Converter Cable online that seems like could do the trick powering a 12v strip from my 5v battery, and was wondering the following:

  • Is this even a safe thing to do? Does that adapter look sketch? I'd be keeping the battery pack in my pocket, most likely.. could it overload or anything like that? I got that battery pack 4 years ago so it's starting to date a little.

  • How fast would this drain my battery pack when used? The battery pack outputs 4.8 amps and has two USB ports. The 12v light strip shows 18watts, but nothing in terms of amps.

If the above isn't the right way to go, I also found some 12v battery packs (this or this), but those are definitely bigger and a bit more expensive.

  • Any reason to believe this would be safer or more recommended than the above?

Now let's say I wanted to power two of those 12v strips.. could I use two 5v > 12V adapters on the 5v battery pack or is that really pushing it?

Any other advice on what to do or not to do?

Thanks!!

Top answer
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| powering 12v light strips with a 5V battery don't do that. use 5V strips. | don't know anything about power, volatge or amps You're going to want to start there. Learn about voltage, amps, resistance, watts, and how they relate to each other before starting a project that could start a fire - especially a wearable project. Youtube is great. Adafruit has a ton of tutorials on basics. This is a great place to start: https://learn.adafruit.com/adafruit-neopixel-uberguide/the-magic-of-neopixels | adding some LED strips to a costume This is a terrible idea, and very difficult to do for a first project. I say that as someone who professionally puts LEDs in wearables, strips are the worst idea for wearables. They just don't bend the right way and will eventually break. Much better to use some RGB fairy lights for wearables. This is what all the cool kids are using these days: https://www.amazon.com/gp/product/B09FKX5C1Q/ | 6ft each - assuming it's because the 5v battery can only power so much strip? They are 6ft because Govee cut them to 6ft. You should be able to power 15ft or more of 5V strip from a single USB port on a good power bank. Try to find a power bank with 3A. Lots of them are only 2A per port, or even 1A per port. | anything longer than 6ft seems to be 12v Keep looking, there's tons of 5V longer strips. The ones I sent above are 32 ft. BTF-LIGHTING on amazon has a bunch that are 15ft: https://www.amazon.com/dp/B01CDTEJBG/ | I found this DC 5V to DC 12V USB Voltage Step Up Converter Cable Again, a terrible idea for multiple reasons. converting 5V to 12V will half your amp output, so you can run fewer lights and less brightness for less duration. 12V strips in general is less energy efficient and uses more power than 5V strips. I would not use 12V if running from a battery, especially for wearables. 12V would be for around the house running off a wall outlet. | Is this even a safe thing to do Things are only as safe as you make them, you need to take some personal responsibility here. If you don't know, assume it's not safe. | Does that adapter look sketch? Yes | I'd be keeping the battery pack in my pocket, most likely.. could it overload or anything like that? If it's from Anker it will have tons of protection against overdischarge etc. that will turn off before it explodes. If it's a cheap no name brand from China it is entirely possible that it will catch fire and explode in your pocket if you don't know what you're doing. | How fast would this drain my battery pack when used This is difficult to calculate, for more reasons than I can get into here. It depends on how bright you run the lights, how many LEDs are on at a time, and what color they're showing. | The battery pack outputs 4.8 amps and has two USB ports. The 12v light strip shows 18watts, but nothing in terms of amps. You should google ohm's law and watt's law and memorize those equations. They're not hard it's like A times B equals C. Watts = Volts x Amps. so 18W = 12V x ?A ?A = 18/12 = 1.5A Please note that the 4.8 A rating on that power bank is combine between 2 ports, but each port has a limit of 2.4A. Do not try to pull 4.8 A from a single port, or it will shut itself off (or explode).
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Max current: 0.6A; You're limited to 7W, so not many LEDs per step up converter. Your battery pack can theoretically do 2x strips of 2.4A, so you could get 2 of them and get up to 14W (split into two strips of 7W each). FWIW, no idea about the govee brand specifically, but longer 5V strips are easy to find, or you could connect two shorter strips.
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LED Montreal
ledmontreal.com › home › catalog › led strip kits › 12v battery powered 150 led strip with 24 key remote
12v Battery powered 150 LED Strip with 24 key Remote - LED Montreal
12v Battery powered 150 LED Strip with 24 key Remote
12v Battery Powered 150 LED Strip with 24 key Remote This Battery Powered RGB LED Strip is the ultimate portable LED Strip. You can now add a magic touch to any special event even if there’s no electrical outlet available. Battery powered LED Strips are great for Tradeshows, kiosks and any other non permanent location or activity. This battery powered LED strip is so light weight and compact that you can even incorporate it in clothes to make LED Halloween costumes. The included 24 key remote will allow you to select 16 individual colors or 4 color changing modes. Set it to Red for Christmas,
Price   CA$59.95
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Candle Power Flashlight Forum
candlepowerforums.com › beyond flashlights › non-flashlight led forum
12v led light strip connected to 12v battery turned off after 20 min | Candle Power Flashlight Forum
January 18, 2022 - They can go lower than 10, i use 6xaaa or a 9 volt for dog harnesses, I build around a dozen by now. even at 9v they are still bright, and shut off completely when AAA cells have a volt or less in them with no load. they way a see that cells are halfway gone is blue no longer lights up, even thou red and green still going strong, Click to expand... I also do this with some short amber LED strips designed to run from 12v. They are very (uncomfortably) bright on 12-14v but run from 9v battery typically starting in 7-8v range (typical when removed from smoke alarms), it is very pleasant nightlight at lower brigtness.
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Physics Forums
physicsforums.com › engineering › electrical engineering
Powering an LED strip with a 12v battery • Physics Forums
June 11, 2017 - It's crucial to install a fuse close to the battery to prevent overheating and potential fire hazards from short circuits. Using thicker wire, like 16 AWG, can reduce resistance and improve efficiency. Proper routing and securing of wires are essential to avoid damage and ensure safety in a boat environment. ... Hi, I want to run a cheap 5 meter led strip along the inside of my boat for cool night lighting. It will be powered by a 12v deep cycle battery.
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SignliteLED
signliteled.com › home › everything you need to know about battery powered led strip lights
Everything You Need To Know About Battery Powered LED Strip Lights - Custom LED Strip Manufacturer From China
Battery is 12V, 20Ah. Estimate run time is 20/5=4hrs. This is theoretical value, considering the voltage and current of LED strips changes during working, it’s normally less than 4hours. ... Most LED strips have a lifespan of 30,000 to 50,000 hours under normal operation. The actual usable life depends on heat dissipation, battery wear, and environmental factors. ... Brightness level: Higher brightness consumes more power...
Published   April 1, 2025
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Reddit
reddit.com › r/18650masterrace › 12v led strip powered with 18650 battery pack
r/18650masterrace on Reddit: 12V Led strip powered with 18650 battery pack
December 6, 2022 -

As the title says, I want to build a 12V led strip powered by a 18650 battery pack. I was thinking about a 1S6P, TP4056 as a "BMS", solar panel to charge it and a buck-bust converter to increase the voltage output.

But during my planning I thought, what would be better, 1S6P, 2S3P or 3S2P? I would appreciate any help with this and if anyone have any recommendations plis help.

Pd: the lights are going to be on my apartment balcony, so I'm planning to do this build as waterproof as I can.

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Flexfire LEDs
flexfireleds.com › home › products › led power supplies
12V LED Strip Light Battery Packs
High quality 12V and 24V DC LED power supplies for indoor and outdoor lighting applications. Choose from dimmable Zurik drivers, Mean Well transformers, or high quality plug-in adaptors.
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Waveform Lighting
waveformlighting.com › home-residential › powering-led-strips-with-a-battery
Powering LED Strips With a Battery | Waveform Lighting
October 28, 2024 - The RAVPower battery includes USB ports with 5V output, as well as a DC jack with variable voltage, with 12V being one of the options. The DC port on the battery unit is a "female" one, and to connect it to the LED strip, the incldued male-to-male cable can be used. First, press the power button on the battery and ensure that the 12V output is selected.
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Quora
quora.com › How-do-you-power-a-12V-LED-strip-with-a-battery
How to power a 12V LED strip with a battery - Quora
Anyway, this is RGB connector: 12V is battery + while G, R, B are connected to battery -. Do not exceed voltage too much cause it might damage LEDs. 15V is for sure ok but above that might be pr...
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Myledy
myledy.com › powering-led-strip-lights-with-battery
Powering LED Strip Lights with Battery - Myledy
September 29, 2021 - If your strips run on 12V, use a 12-volt battery. Simple as that. Just make sure to connect the identical terminals (positive-to-positive and negative-to-negative). Lastly, click the RGB strips to its controller output to begin lighting it up.
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Quora
quora.com › What-battery-should-I-use-to-power-a-12-volt-LED-strip-I-need-it-to-be-small-as-Im-sewing-it-into-a-costume-so-I-need-to-be-able-to-hide-it
What battery should I use to power a 12 volt LED strip? I need it to be small as I'm sewing it into a costume so I need to be able to hide it. - Quora
Answer (1 of 5): you need to determine how many LEDs you need to power, a typical LED draws 20mA (milliamps.. or 0.02 Amps). once that is determined you have to factor in how long you want to power your LEDs… example: if your LED strip contains 48 LEDs (typical LED requires about 2 volts so I ass...
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Quora
quora.com › How-can-I-power-an-RGB-LED-strip-using-a-12v-battery-instead-of-AC-power-The-LED-strip-comes-with-a-120v-power-supply-but-I-want-to-use-it-camping
How can I power an RGB LED strip using a 12v battery instead of AC power? The LED strip comes with a 120v power supply, but I want to use...
Answer (1 of 7): Look on the adapter. It probably says it puts out 12 volts DC. Most strips that come on 5 meter rolls are 12 volts DC. Just solder wires to the input connections and then to a couple clip leads. Make sure you get the polarity right on the battery. Usually, there are 3 LEDs in a ...