This article covers 【リチャージWiFi】バッテリーレス 日本100GB+世界3GB 365日 ポケット WiFi ギガ付 海外利用可能【TD12-100GB.

Overview

The Recharge WiFi TD12-100GB/365 is a battery-less mobile router that stands out for its simplicity and prepaid data model. Instead of a built-in battery, it draws power via USB, eliminating concerns about battery swelling or degradation over time. The package includes 100GB of domestic Japan data plus 3GB of global roaming data, valid for 365 days from first activation. There is no monthly fee, no contract, and no need to return the device — a true buy-it-now solution. Measuring just 9.5×4.2×1.2 cm and weighing only 40 grams, the TD12 is extremely portable. It supports Wi-Fi 6 (802.11ax) with downlink speeds up to 150 Mbps and uplink up to 50 Mbps. Up to 16 devices can connect simultaneously, making it suitable for a small group or family on the go.

Connectivity & Compatibility

The router supports a wide range of cellular bands: LTE-FDD (B1/B2/B3/B4/B5/B7/B8/B9/B12/B13/B17/B18/B19/B20/B25/B26/B28/B66), LTE-TDD (B34/B38/B39/B40/B41), 3G WCDMA (B1/B2/B4/B5/B8), and 2G GPRS/EDGE (B2/B3/B5/B8). This multi-carrier compatibility covers Japan's major networks (docomo, au, Softbank) and many international carriers. Power is supplied through a USB cable (included). You can plug it into any USB-A port — a car charger, power bank, laptop, or wall adapter. The battery-less design means no battery management is needed, and the device can be left plugged in indefinitely without risk. Wi-Fi 6 brings improved efficiency in congested environments, and the router is backward compatible with 802.11b/g/n devices. Both 2.4 GHz and 5 GHz bands are supported.

Product Info

The Recharge WiFi TD12-100GB/365 launched on Japan in late 2025. The retail price is ¥9,980 (tax included), which includes the initial data allocation. The manufacturer offers a 1-year warranty. In the box you get the router, a USB cable, and a quick-start guide. Additional data can be purchased through the official website or app, with payment options including credit cards, Pay, and convenience store payments. Positioned as an entry-level to mid-range mobile router, the TD12 excels in scenarios where no monthly commitment is desired. Its prepaid nature and battery-less operation make it a practical choice for temporary or backup internet access. However, speeds are best-effort and may vary with network congestion.

Best Use Cases

In-car Wi-Fi for drivers and passengers: The battery-less design means you can leave it plugged into the car's USB port without worrying about battery health. Perfect for navigation, streaming music, or keeping passengers connected. Note that the router loses power when the engine is off, so for always-on use, consider powering it through a dedicated power bank. Business travelers and short-term visitors: With no contract and 365-day validity, it's ideal for temporary stays, business trips, or returning residents. International roaming can be topped up as needed. However, heavy data users or those requiring consistent high speeds for video conferencing may find the best-effort speed limiting. Backup internet for home or office: Keep the TD12 as a failover connection when your main fixed-line goes down. Since there's no monthly fee, it costs nothing to keep it idle. Just remember that it won't match the stability or speed of a wired broadband connection. Budget-conscious students or new residents: For those moving into a new place and needing internet immediately without signing a long contract, this router offers a low upfront cost and a full year of data. The 16-device limit is generous for a small household but may be tight for larger shared accommodations.

Product Disclosure (Amazon)

  • Manufacturer: リチャージWiFi
  • Seller: 【リチャージモバイル公式】カウスメディアStore
  • Fulfilled by: 【リチャージモバイル公式】カウスメディアStore
  • ASIN: B0FV6X8JR5
  • Note: This article covers a manufacturer-made product based on Amazon listing details.