is the battery back the new V50? From pictures it looks like the old one.

The current version on Amazon has the V44 battery pack. The V50 is currently only available directly on our website as of today (September 16, 2019).

My battery pack is now 100% charged. If I don't use it, how long will the battery last (days/months)? Thank you!

We recommend making sure you use or recharge your battery every 6 months to maintain the battery's performance, but if full the battery should hold its charge for about 1 year.

can this charge other battery packs as well?

Yes, although most battery packs are designed to charge well from solar. Some have low current cutoffs, others can only take a narrow range of voltages, etc. If you want to charge other battery packs, we suggest adding a regulator to the solar panel output - https://www.voltaicsystems.com/solar-usb-regulator

Is there room 4 a camelpack?

Yes - we would place it in the laptop / tablet compartment in the back of the bag and then run it down the shoulder strap. You would want to improvise some sort of clip or strap to hold the Camelback to the shoulder strap, but that should be relatively easy.

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OffGrid Solar Backpack

Product ID: 51488133

Details

Brand
Voltaic
Color
Matte Black
Compatible Devices
Cameras
Compatible Phone Models
Iphone
Connector Type
USB Type C
Included Components
V50 Power Bank

⚡Charges phone in 3.5 hrs

🎒Fits laptops up to 15"

🔋10W solar panel power

£260.04

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

☀️ Charge your hustle, wherever the sun takes you!

POWER BANK INCLUDED - V50 battery pack stores energy for on-demand charging, even when the sun takes a break.
RAPID RECHARGE TECH - Fully charge most smartphones in just 3.5 hours under direct sunlight—no more waiting around.
SUN POWERED FREEDOM - Harness 10 watts of monocrystalline solar energy to keep your devices charged anywhere, anytime.
ALL DAY ADVENTURE READY - Rugged, waterproof design with a 25L capacity and padded laptop sleeve for seamless work-play balance.
UNIVERSAL DEVICE COMPATIBILITY - Supports thousands of USB-powered devices from iPhones to DSLR cameras—stay connected on the go.

The Voltaic Systems OffGrid Solar Backpack combines a high-efficiency 10W monocrystalline solar panel with a durable 25L waterproof backpack and an included V50 power bank. Designed for professionals on the move, it charges smartphones fully in 3.5 hours of direct sunlight and fits laptops up to 15 inches. Built tough with recycled PET fabric and backed by a 2-year warranty, it powers a wide range of USB devices, making it the ultimate eco-conscious companion for work and adventure.

Specifications

ASIN	B01N244AEO
Best Sellers Rank	#348,499 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #3,074 in Cell Phone Portable Power Banks
Brand Name	Voltaic Systems
Color	Matte Black
Compatible Device Size Maximum	15 inches
Customer Reviews	4.1 4.1 out of 5 stars (38)
Fit Type	BACKPACK
Included Components	V50 Power Bank
Item Weight	4.2 pounds
Manufacturer	Voltaic Sytems
Manufacturer Part Number	1034-C
Material Type	Recycled PET
Model Name	V50
Number of Items	1
Other Special Features of the Product	Solar Powered
Outer Material	Polyester
Pattern	Solid
Product Style	Modern
Recommended Uses For Product	Iphone
Size	Large
Sport Type	Hiking, Travelling
Storage Volume	25 liters
Style Number	V50
UPC	892652001227
Unit Count	1 Count
Water Resistance Level	Waterproof

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