How to Flush a Tankless Toilet During a Power Outage? No Manual Lever Needed — Use Your E-Bike Battery to Operate Normally

Keep using your toilet as usual, even during a power outage. Power tankless toilets and lighting using your electric assist bicycle battery.

Areti. (Headquarters: Chuo City, Tokyo; hereinafter 'Areti'), a home appliance manufacturer, will launch a limited-time sale on the inverter 'Charipawa (ivt2499)' during the Rakuten Shopping Marathon starting July 4. This device converts electric assist bicycle batteries into emergency power sources.

Did you know the biggest challenge during a blackout might actually be the 'toilet'?

With 'Charipawa', you can flush your tankless toilet normally using the button, just like on regular days, providing peace of mind even when sheltering at home.

Modern tankless toilets cannot perform automatic flushing during power outages. In the dark, searching for the manual lever in the instruction manual is far more difficult than you might imagine.

This is where 'Charipawa' comes in — it allows you to use your toilet just as you normally would by converting your electric assist bicycle battery into an emergency power source.

Using it is incredibly simple: just attach the battery to 'Charipawa' and plug your toilet’s power cord into the AC outlet. To extend battery life, we recommend turning off the seat heater and using only the washing function.

Ensure lighting too — enhanced safety with up to 500W of simultaneous power supply

Simply plug in genuine batteries from Yamaha, Bridgestone, or Panasonic (25.2V–25.9V), and you can power devices via AC (100V) or USB — perfect for charging smartphones or powering small appliances.

'Charipawa' supports up to 500W of simultaneous power output. Connecting a USB-powered light ensures sufficient illumination, even in windowless bathrooms.

During outages, flushing manually requires using a special lever — an unfamiliar operation. At night, visibility is poor, making an emergency power source extremely convenient.

Being able to 'see' during a blackout brings peace of mind. With lighting and toilet functionality, users can remain calm at night — especially beneficial for elderly individuals and families with young children.

It's not just about 'having electricity' — it's about 'using electricity with confidence.' That’s what 'Charipawa' delivers.

More than just disaster preparedness — 'Charipawa' fits seamlessly into daily life

Since it requires no fuel and operates quietly, it can be used in evacuation centers or basements.

'Charipawa' has received the 'Recommended Disaster Preparedness Product' certification for its usefulness during emergencies.

During blackouts, it can charge communication devices like smartphones, and also power fans or electric blankets — enhancing comfort during evacuation.

It can even support electric cookers and coffee makers for outdoor use, up to 500W.

It’s also ideal for camping or overnight stays in vehicles where open flames are unsafe. Use your e-bike battery not just in emergencies, but also for everyday leisure activities.

Check out what else 'Charipawa' can do

The 'Charipawa' inverter is useful not only for disaster preparedness and BCP planning, but also for camping and car camping.

Rakuten Shopping Marathon is now on 'Charipawa (ivt2499)'

Period: July 4 (Fri) 8:00 PM – July 11 (Sat) 1:59 AM

Regular price ¥17,800 → ¥13,350

・Certified as a Recommended Disaster Preparedness Product

・1 AC outlet / 1 USB-C (PD) / 2 USB-A ports

・Compatible with 25.2–25.9V batteries from Panasonic, Yamaha, and Bridgestone

・Dimensions: W156 × D221 × H98 mm

・Up to 500W continuous output

・Peak output of 1000W (for 2 seconds)

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