Coalax Lancer 300 Power Backpack Combo Specs Explained

The Coalax Lancer 300 Power Backpack Combo has been showing up a lot lately in drone forums, filmmaker groups, and Amazon reviews. It’s marketed as a camera bag, power station, solar charger, and mounting rig all in one, which sounds like a lot until you look at the actual specs.

Product listings on Amazon and B&H cover the basics but rarely explain how the parts work together. This guide breaks down the battery, storage, build, and mounting system in plain language, so you know exactly what you’re buying before you commit.

Coalax Lancer 300 Power Backpack Combo: Quick Overview

The Lancer 300 Combo is a modular backpack built around a rigid exoskeleton frame, with a 300Wh power station built into the pack itself.

Here’s what’s included:

• Capacity: Around 30–35L total, split between a main compartment (about 24L) and a top or accessory pack (about 6L)
• Power: Built-in 300Wh power station with multiple output ports
• Extras: 25W solar panel, two magic arms for mounting cameras or drones, a 5L accessory bag, and a MOLLE attachment system
• Frame: Exoskeleton shell that protects gear and supports the pack’s weight
• Weight (empty): About 4.5kg (9.9lbs)

It’s built for people who’d otherwise carry a camera bag, a separate power bank, and a mounting rig as three different items. Photographers, drone pilots, digital nomads, and hikers on longer trips are the main audience.

Battery and Power Station Specs Explained

The built-in power station is the main feature of this backpack. There’s no separate power brick to pack or plug in.

The 300Wh battery works out to roughly:

• 15–20 full smartphone charges
• Enough capacity to recharge a full-size drone battery 4–6 times
• Multiple laptop charges, depending on wattage draw

That’s a solid amount of stored power for something you’re already carrying. Instead of adding a standalone power bank to your load, the battery is part of the pack’s structure, which matters most on multi-day shoots or trips without easy access to outlets.

How the Built-In 300Wh Power Station Works

The power station is integrated into the pack’s frame and connects to output ports on the strap or side panel, depending on the version.

In practice:

• You plug devices directly into the backpack, no loose battery pack or extra cables
• The battery charges via wall outlet or the included solar panel
• Some versions let you remove and swap the power module, which matters for air travel

One thing to flag: a 300Wh battery sits close to the limit airlines typically allow without prior approval, and it’s unlikely to be automatically TSA-approved. Check TSA’s lithium battery guidelines before flying with it.”

Solar Panel Specs and Daily Charging Output

The included 25W solar panel is meant to extend battery life, not replace wall charging.

Coalax states it can add up to 30% more daily power, which is realistic for a panel this size. It won’t fully refill a 300Wh battery in a day, but it’s enough to offset steady device use while you’re out, like keeping a phone or GPS unit topped up.

The panel is most useful on longer trips, camping, overlanding, or shoots where you might go a few days without a wall outlet. Think of it as a backup system rather than your main charging method.

Storage Capacity and Modular Compartment Layout

Beyond the power system, the Lancer 300 Combo holds a genuinely large camera and gear setup.

Total capacity is around 30–35L:

• Main compartment: About 24L, for cameras, lenses, and larger gear
• Top or accessory pack: About 6L, better for smaller items or a drone controller
• 5L accessory bag: Included with the Combo version, useful for quick-access items

The internal layout is modular, so you can rearrange dividers depending on what you’re carrying. Several owners mention fitting mid-size drones like the DJI Air 3S into the drone compartment, which isn’t guaranteed with every camera backpack.

Exoskeleton Frame Design and Build Materials

The Lancer 300 Combo uses a rigid exoskeleton shell around the outside of the pack instead of relying only on soft padding.

This design does two things:

1. Protects gear by absorbing drops and impacts before they reach your camera or drone
2. Distributes weight more evenly across the frame, which matters once the pack is loaded with 30L of gear plus the battery

Combined with reinforced internal padding, the exoskeleton is what lets Coalax market this bag for rougher outdoor and field use, not just casual day trips.

Weight, Dimensions, and Comfort on Long Treks

A backpack with a built-in battery and rigid frame sounds heavy, so it’s a fair question.

Empty, the Lancer 300 Combo weighs about 4.5kg (9.9lbs). Coalax compares this to carrying a standard camera backpack plus a separate 296Wh power bank, which can add up to 7kg (15.4lbs) once you include the extra bag and cables to keep it organized.

For comfort, the strap and frame design aim to keep weight evenly distributed on longer treks, which matters more than most spec sheets suggest once you’re a few hours into a hike with a full load.

Magic Arm and Drone/Camera Mounting Compatibility

The Combo version includes two magic arms, adjustable mounts that attach to the outside of the pack.

These support hands-free filming:

• Mount an action camera (GoPro, Insta360, or similar) for POV or walk-and-shoot footage
• Attach a light for on-the-move lighting
• Position a phone or monitor to check framing while walking

This is useful for solo creators, vloggers, and documentary shooters who need continuous footage without stopping to set up a tripod for every shot.

Charging Ports and Fast-Charging Speed Breakdown

The power station includes about six output ports:

• 2x USB-C
• 2x USB-A
• 2x AC sockets
• 1x DC output

With 100W PD fast charging, the Lancer 300 Combo can bring a drone battery to about 50% in roughly 30 minutes. The port variety also means you can charge 4–6 devices from the same battery without extra adapters.

MOLLE System and Accessory Attachment Points

The pack includes a MOLLE (Modular Lightweight Load-carrying Equipment) system with around 20 attachment points.

This lets you customize the exterior with:

• Pouches for batteries, tools, or a first-aid kit
• Tripod or trekking pole holders
• Extra straps for bulky gear like helmets or jackets

This matters more the longer you own the bag. As your kit changes, the MOLLE system lets the backpack adapt instead of locking you into a fixed setup.

Coalax Lancer 300 Power Backpack Combo vs Standard Camera Bags

A standard bag is lighter and cheaper on its own. But once you add a comparable power bank, solar panel, and mounting rig separately, the total weight and cost often land close to, or above, what the Lancer 300 Combo offers as one system.

FAQs

How much can the 300Wh battery charge?

Roughly 15–20 phone charges, or enough to recharge a drone battery 4–6 times, depending on the model.

Is the Coalax Lancer 300 Power Backpack Combo TSA approved?

Not automatically. A 300Wh battery is close to typical airline limits, so check with your airline before flying with it.

How fast does the power station charge devices?

With 100W PD fast charging, it can bring a drone battery to about 50% in around 30 minutes.

How much does the backpack weigh empty?

About 4.5kg (9.9lbs), which Coalax positions as lighter than a standard bag plus a separate comparable power bank.

Does the solar panel fully recharge the battery?

No. The 25W panel extends daily power by up to 30% and works as a backup source, not a primary charging method.

Can it fit a full-size drone like the DJI Air 3S?

Yes, based on multiple owner reports, though fit depends on your specific drone and accessories.

Conclusion

The Coalax Lancer 300 Power Backpack Combo backs up its claims with real specs: a 300Wh power station, 25W solar panel, exoskeleton frame, dual magic arms, and a 30–35L modular layout built for creators, drone pilots, and outdoor explorers.

Whether it’s right for you depends on how you shoot and travel. If you’re regularly out for full days without access to an outlet, or you’re tired of carrying a separate power bank and mounting rig, the integrated design solves a real problem. If your trips are shorter or closer to power sources, a standard bag may still be the simpler choice. Either way, you now have the actual specs to decide for yourself.