乾電池式の除草用噴霧器「除草名人」にハイコーキの7.2Vバッテリーを使えるようにする

I modified KOSHIN's battery-powered weed sprayer, the "Weeding Master," so that it can use a HiKOKI 7.2V battery. I think the same thing can be done with Makita or Panasonic. Rechargeable sprayers are expensive, but if you have battery-powered tools, it might be worth modifying an inexpensive battery-powered one. As with any modifications, please upgrade at your own risk. Parts Used KOSHIN Backpack-Style Battery-Operated Weed Killer Sprayer, 10L, Weed Killer Master JS-10, Uses 4 D-Batteries (Sold Separately), Dedicated Weed Killer, Shower, Drop-Down, Quiet, Easy to Use, for Home Use https://amzn.to/3nTiJ0G Aideepen 5pcs Automatic Buck-Boost Converter Module XL6009, DC-DC 5-32V to 1.2-35V Adjustable Output Voltage, 4A Power Supply Regulator, 3V, 5V, 9V, 12V to 12V, 24V Output, Automatic Control Voltage Stabilizer, Replaces LM2577 [Red] https://amzn.to/3tMnF9I HiKOKI (formerly Hitachi Koki) Cordless Torch Light UB7DL Battery and charger sold separately https://amzn.to/2RuEyI2 For Makita batteries: Makita Rechargeable Flashlight (Flashlight) for 7.2V Plug-in Battery ML704 (Battery sold separately) https://amzn.to/2PfA6Mt Free BGM and Music Materials: MusMus http://musmus.main.jp Sound Effects: Pocket Sound https://pocket-se.info/ DOVA-SYNDROME https://dova-s.jp/ Free BGM and Music Materials: MusMus http://musmus.main.jp Sound Effects: Pocket Sound https://pocket-se.info/ DOVA-SYNDROME https://dova-s.jp/