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🔋 Power up your productivity with smart, safe, and sleek energy!
The SHINTYOOL 21V 4.0Ah lithium-ion battery offers robust power and smart features including a 4-LED fuel gauge and multi-protection safety system. Compatible with a wide range of major power tool brands, it comes with a universal charger supporting 100-240V input and a flame-retardant shell. Designed for professionals who demand reliability and real-time battery status, this rechargeable battery weighs just 9 ounces and includes a 1-year warranty.








| ASIN | B0B64631SL |
| Amperage | 1 A |
| Antenna Location | Power Tool |
| Battery Capacity | 4000 milliamp_hours |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 1.4 pounds |
| Best Sellers Rank | #76,768 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #772 in Cordless Tool Battery Packs |
| Brand | SHINTYOOL |
| Built-In Media | Battery with Charger Adapter |
| Compatible Phone Models | Compatible: For ALLOYMAN, Aoben, seesill, AVHRIT, Inquire to learn more about compatible brands. |
| Customer Reviews | 4.5 4.5 out of 5 stars (320) |
| Item Dimensions | 4.7 x 3 x 2.8 inches |
| Item Weight | 9 ounces |
| Manufacturer | SHINTYOOL |
| Model Name | bl1820 |
| Model Number | B5503 |
| Number of Batteries | 1 AAAA batteries required. (included) |
| Reusability | Rechargeable |
| Unit Count | 1 Count |
| Voltage | 21 volts |
| Warranty Description | 1 yera |
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