Elecom has unveiled what it calls the world's first consumer-grade sodium-ion power bank — and it could mark a turning point for portable battery technology. The Elecom Sodium-Ion Power Bank packs 9,000mAh of capacity using Na+ sodium-ion cell chemistry instead of the lithium-ion cells found in virtually every other portable charger on the market today.
- Elecom world's first sodium-ion power bank uses Na+ chemistry instead of lithium, rated for 5,000 charge cycles — roughly 10x a typical lithium battery.
- It supports 45W USB-C PD and 18W USB-A output, operates from -35°C to 50°C, and is priced at 9,980 yen (approx. Rs 5,905).
- Sodium is more abundant and easier to dispose of than lithium or cobalt, making this a greener choice for eco-conscious users.
- Global availability has not yet been announced; pre-orders are open on Elecom's direct shop with a limit of 3 units per customer.
Why Elecom World's First Sodium-Ion Power Bank Matters
Standard lithium-ion power banks rely on lithium and cobalt — metals that require intensive mining with significant environmental and ethical costs. Sodium, by contrast, is one of the most abundant elements on Earth. Switching to sodium-ion chemistry means less destructive mining, fewer supply-chain concerns, and a simpler, cleaner disposal process at end of life. If sodium-ion technology gains mainstream traction, it could meaningfully reduce the environmental footprint of the entire portable electronics industry.
Beyond the ecological argument, sodium-ion cells bring genuine practical advantages. Lithium-ion batteries are well-known for thermal runaway risk — the phenomenon behind occasional smartphone and laptop fires. Elecom's sodium-ion design is inherently more thermally stable, reducing the risk of overheating and making it a safer option for travel, checked luggage, and everyday carry.
Elecom Sodium-Ion Power Bank: Full Specs and Features
Here is everything Elecom has confirmed about the Na+ power bank:
- Capacity: 9,000mAh
- Charging output: 45W USB-C Power Delivery + 18W USB-A
- Operating temperature: -35°C to 50°C
- Cycle life: 5,000 charge cycles (approximately 10× a standard lithium-ion battery)
- Dimensions: 87 mm (W) × 31 mm (D) × 106 mm (L)
- Weight: 350 g
- Color options: Black (DE-C55L-9000BK) and Light Gray (DE-C55L-9000LGY)
- Price: 9,980 yen (approximately Rs 5,905)
The 45W USB-C PD port is powerful enough to fast-charge most smartphones, tablets, and even select thin-and-light laptops. The secondary 18W USB-A port covers older devices and accessories simultaneously.
Temperature Performance in Extreme Conditions
One of the standout selling points is cold-weather resilience. Lithium-ion cells lose capacity rapidly and can refuse to charge below freezing, which frustrates outdoor adventurers, construction workers, and anyone in northern climates. The Elecom sodium-ion bank keeps operating at temperatures as low as -35°C, and it handles heat up to 50°C on the other end — making it a reliable companion whether you are hiking in Arctic conditions or working under a desert sun.
Real-World Charging Estimates
Elecom provides the following real-world estimates for the 9,000mAh capacity:
- A 1,800mAh smartphone can be recharged approximately 2.9 times.
- A 3,000mAh smartphone can be recharged approximately 1.7 times.
The 350 g weight is heavier than many lithium-ion equivalents at similar capacity levels — a direct consequence of sodium-ion cells having lower energy density than lithium. That is a trade-off users will need to weigh against the longevity, safety, and environmental benefits.
Price, Availability, and Where to Buy
The Elecom Na+ Sodium-Ion Power Bank is priced at 9,980 yen (approximately Rs 5,905) and is currently available for pre-order through Elecom's direct shop, with a purchase limit of 3 units per customer. It comes in two colors: Black (model DE-C55L-9000BK) and Light Gray (model DE-C55L-9000LGY). Elecom has not yet announced a global launch date or international retail availability.
For more coverage of the latest power bank and accessory launches, browse our Elecom brand page where we track new product releases as they are announced.
Frequently Asked Questions
Is the Elecom sodium-ion power bank available outside Japan?
As of the current announcement, the Elecom Na+ Sodium-Ion Power Bank is only available for pre-order via Elecom's Japan direct shop. No international release date or global retail channels have been confirmed yet.
How does sodium-ion compare to lithium-ion in terms of cycle life?
Elecom rates the sodium-ion power bank for 5,000 charge cycles, which is approximately ten times longer than a typical lithium-ion battery. This significantly extends the usable lifespan of the device before capacity degradation becomes noticeable.
Why is the sodium-ion power bank heavier than lithium alternatives?
Sodium-ion cells have lower energy density than lithium-ion cells, meaning they require a larger and heavier cell structure to store the same amount of energy. At 350 g for 9,000mAh, the Elecom unit is noticeably heavier than comparable lithium-ion power banks, which is the main engineering trade-off of the current sodium-ion generation.
