Yoidesu 170W Battery Powered Space Heater: Is Cordless Heat Worth It in 2026?
This battery-powered heater fills a niche for cordless worksites, but 170W output and absent safety features limit its usefulness for most heating needs.
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Key Specifications
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Our Verdict
This heater runs on an 18V battery instead of a power cord. No cord means you can use it anywhere. A job site or workbench without outlets is where it fits best.
At 170W, it produces about 580 BTU per hour. Standard space heaters produce 5,000 to 12,000 BTU. This unit warms only a very small area directly in front of it.
It has no tip-over protection and no overheat shutoff. These two features appear in nearly all competing heaters. Their absence is a significant gap for any indoor use.
You get two gear settings: low at 30-50°C and high at 50-80°C. That gives basic output control. But no thermostat means it cannot hold a specific target temperature on its own.
The $26.45 price looks attractive at first glance. The required 18V battery is sold separately. Add that cost before comparing it to plug-in heaters.
What We Like
- Runs on 18V lithium batteries so it works anywhere with no power outlet needed.
- Very affordable at $26.45 purchase price.
- Compact and lightweight design makes it easy to carry between locations.
- Two heat settings give basic output control: low (30-50°C) and high (50-80°C).
- Operates quietly without disturbing work or concentration nearby.
What Could Be Better
- Only 170W output produces about 580 BTU/hr, far below the 5,000+ BTU average for comparable heaters.
- No tip-over protection, a standard safety feature found in nearly all competing space heaters.
- No overheat shutoff, which most space heaters include as a basic built-in safety requirement.
- No thermostat to hold a steady temperature, unlike most heaters at this price point.
- Battery not included, adding significant extra cost beyond the $26.45 purchase price.
Standout Features
Full Specifications
Additional Info
| Assembly | No |
Frequently Asked Questions
Common questions about Small Space Heater, 170W 2 Gears 18V Battery Powered Heater, Electric Heater, Portable Battery Operated Heaters for Indoors for BL1815 BL1820 BL1530 BL1840 BL1850 BL1860
What batteries work with this heater?
It works with Makita 18V lithium batteries: BL1815, BL1820, BL1530, BL1840, BL1850, and BL1860. The battery is not included and must be purchased separately.
How much heat does this heater produce?
It runs at 170W, which equals roughly 580 BTU per hour. That is enough to warm a very small area directly near the unit but not a full room.
Does it shut off automatically if it tips over or overheats?
No. This heater does not include tip-over protection or overheat shutoff based on its listed specifications. It should be supervised at all times during use.
Can I control the temperature precisely?
No. There is no thermostat. You can switch between two gear settings: low (30-50°C) and high (50-80°C), but the heater will not hold a specific target temperature automatically.
Is this heater safe to use in a bedroom or while sleeping?
It is not recommended for bedrooms or overnight use. It lacks both tip-over protection and overheat shutoff, which are important safety features for any unattended operation.
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