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This 3.7V 620mAh rechargeable lithium polymer battery is engineered for reliable replacement in Cozmo Vector robots, SkyBell HD WiFi video doorbells, Flysight FPV watches, and wireless speakers. Featuring a compact 5×30×41mm form factor and weighing just 13g, it delivers 2.294Wh of power with built-in Japanese Seiko IC protection against overcharge, overcurrent, and short circuits. Designed for DIY enthusiasts and professionals alike, it includes a genuine JST 1.25mm 2-wire connector and heat shrinkable insulating sleeve for safe, easy installation. Backed by a 1-year quality guarantee, this battery ensures your smart devices stay powered and protected.







| ASIN | B08PKV564B |
| Amperage | 0.6 Amps |
| Antenna Location | Doorbell, GPS, MP3 Player, Radio, Speaker, Toys, Watch |
| Battery Capacity | 620 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 12.6 Grams |
| Best Sellers Rank | #8,187 in Toys ( See Top 100 in Toys ) #7 in RC Batteries |
| Brand | HXJNLDC |
| Country of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (749) |
| Item Dimensions | 41 x 30 x 5 millimeters |
| Manufacturer | HXJN |
| Model Number | 503040 |
| Number of Batteries | 1 C batteries required. (included) |
| Reusability | Rechargeable |
| UPC | 054114076826 |
| Voltage | 3.7 Volts (DC) |
| Warranty Description | 1 |
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