SolidCore is Mazer's new family of power banks built around a hybrid semi-solid-state battery cell, a design that replaces most of the flammable liquid electrolyte in a conventional lithium-ion cell with a semi-solid material. A standard power bank cell is roughly 25 to 35 percent liquid electrolyte. In a SolidCore cell, that drops to around 10 percent. Less flammable liquid means less fuel if the cell is ever punctured, crushed, or overheated. That is the whole idea, and it is why Mazer calls SolidCore the safe battery cell.
This guide explains the technology in plain English: why ordinary power banks fail, what a hybrid semi-solid-state cell actually changes, and what to check before you buy your next one. Mazer has been building charging gear from Singapore since 2009, trusted by over 500,000 customers with 1.5M+ units sold and a 24-month warranty on every product, including the new SolidCore range that begins with the SolidCore Air 10k.
Why everyone suddenly cares about power bank safety
Stand at any security lane in Changi and you will see it: trays of power banks being counted, inspected, occasionally surrendered. From 15 April 2026, the Civil Aviation Authority of Singapore limits passengers to two power banks per person on flights departing Singapore, and none of them may be charged on board. Singapore Airlines goes further in its own advisory, capping each unit at 100Wh without prior approval and banning their use to charge devices mid-flight.
None of this happened because regulators dislike convenient charging. It happened because the lithium-ion cells inside most power banks carry a real, if small, fire risk, and that risk travels: in cabin bags, in seat-back pockets, in the backpack pressed against your laptop on the MRT. If you have ever noticed a power bank sitting warm in your bag and wondered about it, you were asking a fair question.
The honest answer is that the overwhelming majority of power banks live quiet, uneventful lives. But 'usually fine' is not an engineering standard. The better question is not whether your power bank will fail. It is what happens inside the cell on the rare day one does, and whether the cell was designed for that day. SolidCore is Mazer's answer to that question.
Why ordinary power banks catch fire, swell, and overheat
Open up a conventional power bank cell, hypothetically please, and you will find four things: a cathode, an anode, a thin separator keeping them apart, and a liquid electrolyte soaking the lot. The electrolyte is the courier. It carries lithium ions back and forth as the cell charges and discharges. It is also, in a standard lithium-ion cell, a flammable organic solvent, and it makes up roughly 25 to 35 percent of what is inside.
That liquid is why battery failures escalate the way they do. If the separator is breached, by a puncture, a crush, a manufacturing defect, or long-term abuse, the cell can short-circuit internally and heat up. Past a certain temperature it enters what engineers call thermal runaway, an uncontrollable self-heating state that UL Research Institutes describes as capable of producing extremely high temperatures, violent venting, smoke, and fire. The flammable electrolyte is the fuel that feeds it.
Swelling is the same chemistry on a slower clock. As a cell ages or is repeatedly overcharged, the electrolyte gradually breaks down and releases gas. The gas has nowhere to go, so the pouch balloons. A swollen power bank has not caught fire, but it is telling you its electrolyte is decomposing, which is exactly why the standard advice is to stop using it immediately.
Notice the common thread. Fire, venting, swelling: every one of these failures runs on the liquid inside the cell. Reduce the liquid and you reduce the fuel. That is the engineering logic SolidCore is built on.
Inside SolidCore: the hybrid semi-solid-state cell
A full solid-state battery, the kind carmakers keep promising, replaces the liquid electrolyte entirely with a solid one. It is a genuine leap. It is also still largely confined to labs and EV prototypes, which is why you cannot buy a true solid-state power bank at a sensible price today.
SolidCore takes the practical route available now: a hybrid semi-solid-state battery cell, sometimes shortened to SSBC. Instead of a free-flowing liquid, the electrolyte sits in a semi-solid matrix, and the flammable liquid content falls from the typical 25 to 35 percent to around 10 percent. The ion transport that makes a battery work still happens. The pool of flammable solvent that makes failures dangerous is mostly gone.
Flammable liquid electrolyte as a share of cell content: a conventional lithium-ion cell versus the SolidCore hybrid semi-solid-state cell.
Two honest caveats, because a safety story only works if it stays accurate. First, SolidCore is not a full solid-state battery, and Mazer does not call it one. It is a hybrid, and the hybrid design is precisely what makes it manufacturable at power bank prices in 2026. Second, no lithium battery of any chemistry is risk-free. What a hybrid semi-solid-state cell changes is how much fuel is present if something goes wrong, not the laws of physics.
Every SolidCore power bank also carries CCC certification, the China Compulsory Certification safety mark that power banks must earn through independent testing before they can be sold in mainland China. It is one of the stricter regimes a consumer battery passes through, and Mazer already holds it on current models such as the CCC-certified MagAir31. SolidCore extends that safety-first habit down into the chemistry of the cell itself.
|
Inside the cell |
Conventional lithium-ion |
SolidCore hybrid semi-solid-state |
|---|---|---|
|
Liquid electrolyte content |
Typically 25 to 35 percent of the cell |
Around 10 percent of the cell |
|
Electrolyte form |
Free-flowing flammable organic solvent |
Semi-solid matrix holding a reduced liquid share |
|
If the cell is damaged |
More liquid fuel available to feed heat, venting, and fire |
Far less flammable liquid to leak or ignite |
|
Swelling over time |
Liquid breaks down into gas that balloons the pouch |
Less liquid available to decompose into gas |
|
Safety certification |
Varies widely by brand and price point |
CCC certified across the SolidCore range |
|
Where you find it |
Most power banks on sale today |
Mazer SolidCore range, starting with the SolidCore Air 10k |
How the SolidCore hybrid semi-solid-state cell differs from a conventional lithium-ion power bank cell.
What to know before you buy a safer power bank
The first SolidCore product to arrive is the SolidCore Air 10k, a 10,000mAh power bank built on the hybrid semi-solid-state cell, with five more SolidCore models following it. At 10,000mAh, its capacity works out to roughly 37Wh, comfortably under the 100Wh ceiling airlines apply, so it is the kind of unit you can carry through Changi without a second thought about the limits. Pricing and full specifications will be published on whymazer.com at launch.
Whether you wait for SolidCore or need a power bank today, safer buying comes down to a short list:
- Certified cells: look for recognised safety marks such as CCC, which mean the unit survived independent abuse testing rather than only a factory checklist.
- Capacity under 100Wh: a 10,000mAh bank is roughly 37Wh and flies without approval; 100Wh to 160Wh needs airline sign-off, and above 160Wh cannot fly at all.
- A real warranty: a 24-month warranty signals a company expects its cells to last; Mazer backs every product with one.
- Physical condition: retire any bank that is swollen, dented, or runs abnormally hot during a routine charge.
- Where you buy: stick to official stores and authorised retailers so the certification on the box matches the cell inside.
If you want a certified unit now, Mazer's current CCC-certified line-up includes the MagAir20 10,000mAh magnetic wireless power bank, covered by the same 24-month warranty the SolidCore range will carry.
SolidCore, in short: the safe battery cell
Every power bank scare story starts the same way, with heat meeting a reservoir of flammable liquid sealed inside a pouch. SolidCore attacks the reservoir. By moving to a hybrid semi-solid-state cell, Mazer cuts the flammable liquid electrolyte from around a third of the cell's content to around a tenth, then puts every unit through CCC certification on top. The SolidCore Air 10k arrives first, sized to sail under airline limits, with the rest of the family behind it. Until launch day, you can browse Mazer's current certified models in the power banks collection and judge the safety-first approach for yourself.
TL;DR
SolidCore is Mazer's range of CCC-certified power banks built on a hybrid semi-solid-state battery cell that cuts the flammable liquid electrolyte from the typical 25 to 35 percent of cell content down to around 10 percent, leaving far less fuel inside if anything goes wrong. The range launches with the 10,000mAh SolidCore Air 10k, sized well under the 100Wh airline limit and backed by Mazer's 24-month warranty.
Frequently Asked Questions about SolidCore
Quick answers to the questions people search about SolidCore, semi-solid-state cells, and power bank safety.
1. What is Mazer SolidCore?
SolidCore is Mazer's family of power banks built on a hybrid semi-solid-state battery cell that reduces the flammable liquid electrolyte inside the cell to around 10 percent, versus 25 to 35 percent in a conventional lithium-ion cell. The range starts with the SolidCore Air 10k, and every model is CCC safety certified.
2. Is SolidCore a solid-state battery?
No, SolidCore uses a hybrid semi-solid-state cell, which retains a small amount of liquid electrolyte held in a semi-solid matrix. Full solid-state batteries remove the liquid entirely but are not yet practical or affordable in consumer power banks.
3. What is a semi-solid-state battery cell?
A semi-solid-state battery cell is a lithium cell in which most of the liquid electrolyte is replaced by a semi-solid material, keeping ion transport working while sharply reducing the flammable liquid inside. It sits between conventional lithium-ion and true solid-state designs.
4. Why do power banks catch fire or swell?
Power banks fail when the flammable liquid electrolyte in a lithium-ion cell ignites after an internal short circuit, or slowly breaks down into gas as the cell ages. The runaway heating case is called thermal runaway, and the gas build-up is what makes a pack swell.
5. Can I take a SolidCore power bank on a plane?
Yes, a 10,000mAh power bank such as the SolidCore Air 10k works out to roughly 37Wh, well under the 100Wh airline threshold, so it travels in your carry-on. From 15 April 2026, passengers departing Singapore may carry at most two power banks and cannot charge them on board.
6. What is CCC certification on a power bank?
CCC, short for China Compulsory Certification, is a mandatory safety mark that power banks must earn through independent testing before sale in mainland China. On a power bank it shows the cell and circuitry passed recognised safety tests, not only the manufacturer's own checks.
7. When can I buy SolidCore power banks?
The SolidCore range launches on whymazer.com starting with the SolidCore Air 10k, with pricing and full specifications published at launch. Joining the Mazer mailing list brings launch news plus 15 percent off a first order.
8. Does a hybrid semi-solid-state cell charge slower?
No, everyday charging feels the same. A hybrid semi-solid-state cell charges and discharges in the same way as a conventional lithium-ion cell, so the safety gain does not come at the cost of normal charging behaviour.
Get 15% off your first order
If a safer battery cell is the kind of engineering you want in your bag, join the Mazer mailing list. You will get 15% off your first order plus first word when the SolidCore Air 10k and the rest of the range go live.
Get 15% off using this link: https://whymazer.com/discount/article15
About Mazer
Founded in 2009, Mazer is a Singapore-based brand trusted by over 500,000 customers, with 1.5M+ units sold, offering high-quality, smarter, and eco-friendly technology designed for everyday life #mazer