Charger maker CIO has announced it will participate in the Amazon Smile SALE on Amazon.co.jp from May 27 to June 2, 2026, offering its lineup of mobile batteries, chargers, and power strips at up to 35 percent off[1]. SMARTCOBY mobile batteries built around semi-solid-state cells, the GaN-based NovaPort series of compact fast chargers, and cord-reel-equipped models are all included, covering charging needs for the latest smartphones and laptops.

Sale Period and Overview

The Amazon Smile SALE runs for about seven days, from 9:00 a.m. on Wednesday, May 27, 2026 through 11:59 p.m. on Tuesday, June 2, 2026[1]. According to CIO, the sale covers charging gadgets ideal for the latest smartphones and PCs, with a maximum discount rate of 35 percent[1]. The discount rates are reference values based on CIO's manufacturer's suggested retail price as of May 26, 2026, so the actual sale prices should be confirmed on each product page[1].

The lineup includes the compact, high-output SMARTCOBY mobile battery series, the GaN-equipped NovaPort fast-charger series, cord-reel-integrated Polaris power strips, popular soft-touch silicone cables, and Spiral cables that automatically coil up via embedded magnets — covering both desk and on-the-go categories in a single discount window[1].

Semi-Solid-State Mobile Batteries from Ultra-Thin to High-Capacity

The centerpiece of the sale is CIO's lineup of mobile batteries built on semi-solid-state cells, an area the company has been pushing aggressively in recent quarters. Compared with conventional lithium-ion polymer cells, semi-solid-state cells are said to be less prone to thermal runaway, and CIO pairs Tier 1 battery-maker cells with its proprietary "NovaSafety S2" heat-suppression firmware and its "NovaCore C2" internal structure design standard[1].

At the ultra-thin end of the lineup, the 8.7 mm thick Qi2-compatible "SMARTCOBY SLIMⅡ Wireless2.0 SS5K" is offered at 6,180 yen (tax included), or 12 percent off[1]. For users who want a slightly thicker model with a built-in cable, the roughly 14 mm "SMARTCOBY Ex04 Wireless2.2 CABLE SS5K" is available at 6,480 yen (tax included), or 9 percent off[1]. The Ex04 supports up to 25 W of Qi2.2 wireless charging and up to 20 W wired output, with a roughly 22 cm detachable USB-C cable built into the body.

In the 10,000 mAh class, the Qi2.2 high-speed wireless "SMARTCOBY SLIMⅡ Wireless2.2 Pro SS10K" can be purchased at 7,680 yen (tax included), or 11 percent off[1]. It offers switchable output modes at 15 W, 7.5 W, and 25 W, making it easier to balance heat output against charging speed for different devices. The three-port "SMARTCOBY Pro SLIM SS" is a 10,000 mAh model with up to 35 W output per port, and is on sale at 5,680 yen (tax included), or 10 percent off[1].

For users who need higher capacity, the 20,000 mAh "SMARTCOBY TRIO" lineup includes two models[1]. The 35 W output version is priced at 8,280 yen (tax included) with an 11 percent discount, while the 67 W output version is priced at 9,880 yen (tax included) with a 10 percent discount. The 67 W model uses CIO's proprietary control technology "NovaIntelligence" to automatically distribute power based on connected devices, making it well suited for situations where a single battery has to drive a laptop as well as smaller gear.

"Best Balance" Models and One of the Thinnest Power Banks in the World

The recently expanded color lineup of the "SMARTCOBY SLIM II Pro 8K" and "SMARTCOBY SLIM II Wireless 2.2 8K" is also part of the sale[1]. Designed as a "best balance" between 5,000 mAh, which can feel insufficient, and 10,000 mAh, which can feel heavy, both models are 8,000 mAh. The wired version is offered at 6,180 yen (tax included), or 13 percent off, and the wireless version at 6,580 yen (tax included), or 18 percent off[1].

Also on sale is the "SMARTCOBY ULTRA SLIM 3K," which CIO bills as one of the thinnest mobile batteries in the world at 4.98 mm thick and roughly 82 g, at 8,280 yen (tax included), or 8 percent off[1]. It combines MagSafe-compatible attachment, Qi wireless charging up to 7.5 W, and Apple's "Find My" support, making it a natural choice for users who tend to misplace small accessories.

Fast Chargers, Power Strips, and Spiral Cables Also Discounted

In the charger category, the compact 65 W GaN charger "NovaPort SOLO II 65W1C" is offered at 3,940 yen (tax included), or 10 percent off[1]. At roughly 74 g, smaller than a single AA battery, it is positioned as a single charger that can cover everything from a PC to a smartphone. The "NovaPort DUOⅡ 45W Built in CORDREEL," with a built-in USB-C cable of about 65 cm, is priced at 4,280 yen (tax included), or 11 percent off, targeting users who want to avoid forgetting their cable on the move[1].

The "NovaWave 3Way+," which can wirelessly charge an iPhone and Apple Watch at the same time, is available at 4,480 yen (tax included), or 10 percent off[1]. It supports up to 15 W output for Qi2-compatible iPhones (iPhone 12 and later, excluding the SE series and 16e) and up to 5 W for Apple Watch, while keeping the body weight to roughly 69 g.

On the power-strip side, the "Polaris CUBE Built in CABLE," roughly the size of a can of coffee, is offered at 4,780 yen (tax included), or 20 percent off[1]. The "Polaris STICK Built in CORD REEL," which combines a detachable cord-reel charger with a surge-protected power strip of up to seven outlets, is priced at 6,080 yen (tax included), or 21 percent off, making it suitable for both permanent desk setups and travel use[1].

For cables, the magnet-equipped self-coiling "Flex Spiral Cable CtoC 1m" and its flat variant "Flat Spiral Cable CtoC" are each available at 1,880 yen (tax included), or 5 percent off[1]. The Flex Spiral Cable CtoC 1m supports up to 240 W PD fast charging and USB 2.0 data transfer, so it can also be used to charge laptops. Other items in the sale include the cordless graphene heater "Hot Eye Mask" at 4,580 yen (16 percent off) and the IPX7 waterproof magnetic "Portable Bath Speaker" at 5,380 yen (10 percent off)[1].

Summary

The Amazon Smile SALE bundles CIO's main charging-gadget categories — semi-solid-state SMARTCOBY mobile batteries, compact GaN NovaPort chargers, cord-reel-integrated Polaris power strips, and Spiral cables — into a single one-week sale from May 27 to June 2, 2026. The headline discount rate is up to 35 percent, with actual sale prices landing in a range of roughly 5 percent off to around 21 percent off. From ultra-thin mobile batteries through high-capacity models that can drive laptops to a full desk power-strip refresh, the lineup is wide enough to fit a number of use cases during the one-week window.

Source:https://prtimes.jp/main/html/rd/p/000000654.000043212.html