You're on the mission

Welcome to
the end of
single-use.

Every time you charge, one less battery is thrown away.

Batteries kept out of landfills

Each Paleblue battery can replace up to 1,000 single-use batteries.

Your First Charge

Three steps. Never buy batteries again.

Charge01

Charge

USB-C cable. All at once. LED ring tells you when they're ready.

Drop them in02

Drop them in

Every device. Alkaline voltage. Works exactly like the batteries you're replacing.

Recharge. Repeat.03

Recharge. Repeat.

1,000+ times. You just ended single-use. Permanently.

LED ring guide

Charging

Slow green flash

Fully charged

Solid green ring

Not charging

Ring unlit

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Getting started with your new batteries
Voltage_Curve.webp
Compatibility

Will they work in my device?

Voyager Series batteries are designed to work in the same devices as standard single-use alkaline batteries. Thanks to their voltage output and improved voltage profile, they're built to work similarly to alkaline, so devices that expect standard battery performance can run on Voyager.

As with any battery, we always recommend checking your device's manual for its specific battery requirements if you're ever unsure.

Paleblue batteries are built for devices you use and recharge regularly, but they're not the right choice for everything. Life-safety devices that need to sit untouched for months or years and be ready the instant they're needed, like smoke detectors, carbon monoxide detectors, and avalanche transceivers, are better served by a fresh non-rechargeable battery with a long shelf life and a predictable, gradual voltage drop that trips a low-battery warning well in advance.

Rechargeable batteries lose charge slowly over time even when not in use, so a Paleblue battery installed today and forgotten for a year may not have the reserve capacity those devices are designed to rely on.

For anything where a dead battery has real safety consequences and swapping it isn't part of your routine, stick with fresh disposables on a regular replacement schedule instead.

Technical Specifications

Voyager Series

Download spec sheet (PDF)

Industry-leading safety features

Over Temperature Protection Stops power delivery if the battery gets too hot
Under Temperature Protection Stops charging if conditions are too cold
Under Voltage Protection Stops power delivery before the cell voltage drops too low
Over Voltage Protection Stops accepting charge once the internal cell reaches max voltage
Short Circuit Protection Reduces output current if a short circuit is detected
Overcurrent Protection Stops power delivery if discharge current exceeds safe limits
Leakage Protection Steel outer shell contains any internal leakage + cap designed to relieve pressure safely
Cables Short Circuit Protection Cables are designed to prevent accidental short circuits
LED Ring Status Indicator Visuals charge and fault indicator lights

Frequently Asked Questions

  • Why did you choose the name ‘Paleblue’?
    In 1990, the Voyager 1 space Probe took a photo toward Earth from 6 billion kilometres away in which Earth can be seen as nothing more than one small blue pixel. This image helped many people realise the finiteness of our world and our resources. We believe that we should be using these resources more wisely and see the recent advancements in battery technology as a way to help us avoid the need to use or dispose of so many batteries.

    What makes these different from my old rechargeable batteries?
    Most rechargeable batteries, historically, were NiMh chemistry. They recharge very slowly and have a hard time keeping up with any high-use applications. For example, your flashlight may not seem as bright as it would with other batteries. 

    Also, NiMH batteries will discharge when not in use. So, if your headlamp hasn't been used in a couple of months, you'll find that your batteries will have lost a lot of charge over time. Paleblue's lithium-ion chemistry and smart circuitry resolve all these issues.

    My old rechargeable batteries never seem to hold a charge. What should I expect from Paleblue?
    Almost all rechargeable AA and AAA batteries that we all have experience with are NiMh rechargeables. One of the problems with this chemistry for rechargeables is that it has high self-discharge. This simply means that the charge goes down on its own when the battery is not in use. So, whether you charge them and put them in a drawer or into a device, but don't use them, later when you go to use them, the battery will have less charge. Combine this with the voltage drop that you get when NiMh discharges to a certain level, and the battery suddenly performs poorly and for not as long as you'd expect. 

    Paleblue are Lithium ion chemistry, which has a much lower self-discharge current and also holds a strong voltage through its discharge cycle. 

    And don't forget, Paleblue recharges super fast so you can recharge conveniently anytime you need a fresh charge.

    Do Paleblue batteries leak?
    No. Lithium-ion batteries have a very stable chemistry that will not leak like traditional alkaline or NiMH rechargeable batteries.

    How safe are Paleblue batteries?
    Among other certifications, we are certified to IEC 62133:2012, the most important and relevant safety certification for Lithium Ion batteries. This standard specifies requirements and tests for the safe operation of portable sealed secondary cells and batteries (other than button) containing alkaline or other non-acid electrolyte, under intended use and reasonably foreseeable misuse.

    Why don’t the big battery companies offer these?
    The big battery companies want to sell you more batteries, not less. Our goal is to have people buy and use fewer batteries. If 'big battery' were to sell you this type of battery, it would erode their entire business model.

  • Do I need a special charger?
    No need! Paleblue batteries have a USB-C port right on the battery. We provide a 4-ended USB-C cable so you can charge 4 at a time.

    What kind of charger should I use?
    Each Paleblue battery will draw 0.5A when charging. If you are charging 4 batteries at the same time, using our 4:1 cable, the USB power supply should be rated at 2A output for optimised charging time (this will be marked on the power supply itself). 

    Most new smartphone and tablet power supplies will support 2A charging, but some older power supplies, or your computer USB port, might only support 0.8A or 0.5A output. Paleblue batteries will still charge with a lower output power supply, but it will take longer. 

    We will soon offer a Paleblue-certified 2A output power supply on our website to ensure that your batteries will charge at the optimised rate.

    How many times can they be recharged
    Thanks to the advanced Lithium-ion technology, your batteries will last over one thousand charges. They charge fast and easy, so if you need to put them to work and suspect they are not full, just plug them in for a little while and you'll be good to go very soon.

    Can I use my Paleblue batteries while recharging them?
    We cannot recommend this use case despite it being physically possible for two reasons. We cannot anticipate all the use cases and possible problems that could occur in those infinite use cases so it is not possible for us to ensure the safety or reliability of our product when recharging while in use. It is also worth noting that any battery that is constant in charge/discharge or on/off situation like this would likely have negative affects on the battery’s life, including your laptop and power banks.

    How do I know when they are charged?Our early batteries were red when charging and green when fully charged; more recent batteries will flash green when charging and be solid green when charged.

  • How does the capacity compare to typical alkaline batteries?
    This is a technically complex issue to answer comprehensively, but let’s look at it through the lens of power output. For any application where power matters (such as a headlamp where brightness matters or a remote control toy where power/speed matters), lithium-ion chemistry is superior. 

    The power output of our product is consistently stronger than an equivalent Alkaline and more than a NiMh rechargeable. (Paleblue holds stronger longer)

    How long will Paleblue batteries last?
    Paleblue batteries will last about as long or more than an equivalent single-use alkaline battery

    Can I bring these on an airplane?
    This should be no problem in your carry-on luggage. We cannot speak for the policies of every airline, so please check.

    Can I use Paleblue batteries to charge my other devices, such as my phone?No, the USB-C port on Paleblue batteries is for charging the batteries only.

    If the batteries are punctured, is there a risk of explosion?
    The batteries are tested (and have passed) IEC62133-2:2017. This is the international safety standard for all lithium batteries. It includes very extensive safety testing, a crush test and flame test. Paleblue batteries are designed to pass all these tests safely with the external metal casing, which is stronger than many typical Lithium battery designs. No Lithium battery should ever be punctured with a metal object, such as a nail, this is the same for a mobile phone battery or power bank, or even an EV.

    Can I use your 9V in my smoke or carbon monoxide detector?
    Most smoke detector and carbon dioxide detector manufacturers recommend not using rechargeable or rechargeable lithium batteries in their products. Always double-check your smoke detector and carbon monoxide detector instruction manuals and manufacturer’s recommendations before making the right battery selection. When in doubt, do not use rechargeable or rechargeable lithium batteries in your detectors.

    Will Paleblue batteries work in my device?
    Be sure to check the owner's manual to see if it recommends using lithium batteries.

  • Why should I consider Paleblue when I can just buy cheap alkaline batteries in bulk?
    Every battery you buy needs to be produced, shipped, stored, sold and disposed of. We believe this is a huge waste of the world's resources and creates unnecessary waste and carbon footprint. By using one Paleblue, you can displace the need for 1000 batteries. This will save a lot of resources and will also save you a lot of money over time.

    Can they be recycled?
    Yes. And you should never put batteries into general waste. Please find information about recycling batteries with your local agencies. They may not want them mixed in with the other dry cells. 

    For more information visit:

    Germany: Umwelt Bundesamt (DE)

    Ireland: WEEE Ireland (IE)

    United Kingdom: Recycle Now (UK)

Charged for Life

Limited Lifetime Warranty

At Paleblue, we stand behind the quality of our products with a limited lifetime warranty, covering manufacturing defects and failures during normal use. Please contact us with any enquiries you may have.

Paleblue offers a Limited Lifetime warranty on all Paleblue batteries purchased from this website or otherwise registered through Paleblue’s online registration process. This warranty covers failures due to manufacturer’s defects. At Paleblue’s discretion, we may choose to provide customers’ valid claims with refunds, replacements, or store credit. Warranty does not cover misuse, abuse, ordinary wear and tear, neglect, or intentional or unintentional misuse or abuse including exposure to adverse environmental conditions such as rain or submersion in water or excessive heat or thermal cycling. Warranty does not include free shipping, customers may be required to pay shipping of replacement product. Warranty period for charging cables is 1 year.

Have any questions?

Please contact us with any queries.

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