can it run on AC power? We need the unit be on all the time.

Yes if you plug the battery charger in to the unit, it will work.

Out of the box i charged the battery for over 8 hours. once i unplugged the unit it automatically turns off. what am i missing?

There is a plastic sticker over the battery terminals. You gave to pull this off for the battery to actually charge. The instructions do not mention this, and it’s not obvious. You need to open the battery compartment, remove the battery, remove the sticker, reinstall, THEN charge.

On my huepar b03cg, the battery compartment cover is sealed. how does it open? i am trying to pry it open with my fingers. does it need a screwdriver?

There’s a clip that holds the cover on. It’s a little finicky but you just need to pry it a little and the battery cover will open

Will the levels still work (self-level function) if the unit is placed upside down to be close to the floor?

I just tested it and it does not work upside-down. You could always measure down from the line when working near the floor.

B03cg | Desertcart Austria

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 230.89

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

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Description

🛠️ Level Up Your Precision Game — Never Miss a Line!

ALL DAY POWER - Stay on the job longer with a robust 5200mAh rechargeable battery delivering up to 8 hours of continuous use.
PRECISION PERFECTED - Achieve pinpoint accuracy within ±1/9 inch at 33 feet for flawless layouts every time.
360 LASER COVERAGE - Experience full-room coverage with three 360° green laser planes—horizontal and vertical—for ultimate versatility.
BUILT FOR THE HUSTLE - Rugged IP54 waterproof/dustproof design with 51-inch drop protection and a strong magnetic bracket for secure mounting in any environment.
SMART FLEXIBLE MODES - Switch effortlessly between self-leveling, manual leveling, and pulse modes to adapt to any project or lighting condition.

The HUEPAR B03CG is a professional-grade 3D laser level featuring three 360° high-brightness green laser planes for comprehensive room coverage and ±1/9 inch accuracy at 33 feet. Powered by a rechargeable 5200mAh battery with up to 8 hours runtime, it offers versatile self-leveling, manual, and pulse modes. Built tough with IP54 waterproofing, drop protection, and a magnetic bracket, it’s designed for demanding construction and precision tasks. Comes complete with a hard carry case and backed by a 5-year warranty for peace of mind.

Specifications

ASIN	B081YYWYBC
Best Sellers Rank	#10,743 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Line Lasers
Brand Name	Huepar
Color	Green Beam-b03cg Pro
Customer Reviews	4.5 4.5 out of 5 stars (2,268)
Included Components	1 x Huepar B03CG Pro Laser Level, 1 x Rechargeable Lithium Battery 3.7V / 5200mAh, 1 x USB-C Power Cord, 1 x Power Adapter, 1 x 360° Magnetic Pivoting Base, 1 x Green Laser Target Plate, 1 x Multilingual User Manual, 1 x Hard Carry Case
Item Type Name	3 x 360° Self Leveling Green High Brightness Cross Line Laser Level
Item Weight	3.61 Pounds
Level Measurement Type	laser
Level Measurement Units	feet, inch
Manufacturer	Leiwotec
Manufacturer Part Number	B03CG-2
Material Type	ABS+TPU
Model Number	B03CG 3D Laser Level
Operation Mode	Self-Leveling, Manual Leveling, Pulse Mode
Style Name	B03CG
Unit Count	1.0 Count

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€ 230.89

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.