Power station or power bank for IRL streaming: when the backpack needs a real battery
By Elan Harpaz · Published 2026-10-13
A 20,000 mAh bank runs a phone stream for hours. A mirrorless, encoder, modem and light together need a 250 W bank or a small power station. The Anker Prime, SOLIX C300 and EcoFlow River 3 compared with runtime math.
Your encoder tops out at 1080p60. A higher-end encoder would go further.
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| Component | Pick | Price | |
|---|---|---|---|
| Camera | DJI Osmo Pocket 3 Gimbal cam with great low light, USB webcam mode, and DJI mic pairing. The IRL favorite. Buy on Amazon | $549 | Buy on Amazon |
| Encoder | Orange Pi 5 + belaBOX Dedicated HDMI-in encoder running the free, open-source belaBOX firmware with SRTLA bonding. The DIY backpack heart. Buy on Amazon | $150 | Buy on Amazon |
| Connection | Netgear Nighthawk M6 5G mobile router with an ethernet port, so you wire it straight to the encoder. Buy on Amazon | $487.22 | Buy on Amazon |
| Data Plan | Visible Unlimited Truly unlimited data on the Verizon network. The IRL favorite for a cheap single line. Learn more | ~$25/mo | Learn more |
| Bonding | belaBOX SRTLA Bonds several connections to your relay, built into the belaBOX encoder. Free. Learn more | Free (with belaBOX) | Learn more |
| Relay / VPS | belaBOX Cloud Managed SRT relay plus phone control to start/stop the encoder. The cheap, popular choice. Learn more | ~$10/mo | Learn more |
| Power Bank / Portable Battery | Anker SOLIX C300 DC A 288Wh LiFePO4 station with only DC outputs, so it is lighter than the AC ones and still runs a rig all day. Buy on Amazon | $199.99 | Buy on Amazon |
| Audio | DJI Mic Mini Tiny wireless lav that pairs straight to the Osmo Pocket 3, keeping audio in sync. Buy on Amazon | $79 | Buy on Amazon |
| Mount / Stabilizer | Smatree telescoping pole Extends reach for selfie framing and stable walk-and-talk shots. Buy on Amazon | $24.99 | Buy on Amazon |
| Lighting | Ulanzi VL49 RGB Pocket Light The IRL crowd favorite: palm-sized RGB light with a built-in 2,000mAh battery, magnets, and three cold shoes. Clips straight onto a gimbal or rig. Buy on Amazon | $18.95 | Buy on Amazon |
| Backpack / Case | NOMATIC McKinnon Camera Backpack The premium creator pack: expandable 35L, side camera access and a laptop sleeve, built for travel days. Buy on Amazon | $399.99 | Buy on Amazon |
You need a power station instead of a power bank for IRL streaming when the rig draws more than about 30 W continuously or has to run for more than four hours, which is where a mirrorless camera, a belaBOX encoder, a 5G modem and a light land together. Up to that point the Anker Prime 27,650 mAh at 250 W is the biggest battery airlines still allow in a carry-on and it runs a phone-and-gimbal build all day. Past it, the Anker SOLIX C300 DC gives you 288 Wh in a bag-friendly shape, and the EcoFlow River 3 adds an AC outlet for the day something in the rig only came with a wall charger.
Add up the watts before buying anything
Every part page on this site with an IRL power figure feeds the runtime estimate in the configurator, and the arithmetic is simple: watt-hours of battery, times about 0.85 for conversion loss, divided by the watts the bag draws. A phone streaming at 6 W plus a gimbal at 2 W lasts around nine hours on a 74 Wh bank. A Sony a7 IV at 8 W, an Orange Pi encoder at 8 W, a Nighthawk at 10 W and a light at 10 W is 36 W, and that same bank is done in under two hours.
| INIU P512 20K | Anker Prime 27,650 | Anker SOLIX C300 DC | EcoFlow River 3 | |
|---|---|---|---|---|
| Capacity | 74 Wh | 99 Wh | 288 Wh | 245 Wh |
| Max output | 22.5 W | 250 W | 300 W | 300 W |
| Carry-on legal | yes (under 100 Wh) | no (over 100 Wh, check airline) | no (over 100 Wh, check airline) | |
| Runtime at 36 W | Under 2 h | About 2.3 h | About 6.8 h | About 5.8 h |
| AC outlet | ||||
| Weight | Light | Under 1 kg | About 2.8 kg | About 3.5 kg |
The most power you can carry onto a plane. 250 W means it charges a laptop-class encoder and a camera at the same time without slowing either.
No AC inverter, which is why it is smaller and lighter than other 288 Wh stations. Pure USB-C output at up to 140 W per port is exactly what a modern rig wants.
The one with a wall socket. Buy it if a camera or light in your bag only charges from its own brick.
A 140 W bank with a screen that shows live draw in watts, which is the cheapest way to measure what your bag actually uses.
A 12 V barrel output for encoders and modems that want it, at a price that lets you carry two.
Two batteries beat one big one
A rig fed by two 99 Wh banks can swap one out at a coffee shop while the other runs the stream, and both are carry-on legal. One 300 Wh station has to come home to charge and cannot fly in the cabin. Unless the bag genuinely draws over 40 W, two Primes are the better purchase.
Frequently asked
How big a power bank do I need for IRL streaming?
A phone build draws under 10 W and a 20,000 mAh (74 Wh) bank runs it most of a day. A backpack with a mirrorless, an encoder, a modem and a light draws 30 to 40 W and needs a 250 Wh station or two 99 Wh banks swapped in turn.
Can I fly with a power station?
Up to 100 Wh is allowed in carry-on without asking. 100 to 160 Wh usually needs airline approval. Anything larger, including most power stations, cannot go in the cabin.
Is the Anker Prime enough for a belaBOX backpack?
For a pocket camera and a belaBOX, yes, for two to three hours. Add a mirrorless and a light and you want the SOLIX C300 or a second Prime.
About this guide. Written by Elan Harpaz. We do not lab-test hardware. Every quality verdict on this page is a planning budget computed from a published model, and every price is a tracked estimate rather than a live one. How the numbers are derived: methodology. How picks are chosen: editorial policy.
Build on this in the configurator