The HOCO JA3 is a two-piece set of rechargeable lithium AA batteries for compatible battery-powered devices. Each battery features a USB-C charging connection, allowing recharging without a separate conventional AA battery charging dock. HOCO specifies an internal battery capacity of 860 mAh at 3.7 V, equivalent to approximately 3200 mWh of energy per cell. The batteries measure 14 × 50.5 mm, weigh 18 g each and support USB-C charging with a manufacturer-stated charging duration of approximately 120 minutes. Key Features AA Rechargeable Batteries: Two rechargeable lithium cells in one set. USB-C Charging: Dire USB-C charging interface for each cell. 3200 mWh Energy: Manufacturer-specified internal battery energy per cell. 120-Minute Charging: Manufacturer-listed approximate recharge duration. Compa AA Dimensions: Each battery measures 14 × 50.5 mm and weighs 18 g. Technical Specifications Component Specification HOCO Model JA3 Produ Type Rechargeable Lithium AA Batteries Battery Size Quantity 2 batteries Internal Cell Capacity 860 mAh at 3.7 V Battery Energy 3200 mWh per cell Charging Interface USB-C Charging Input 5 V / 450 mA Rated Charging Time Approximately 120 minutes Dimensions per Cell 14 × 50.5 mm Weight per Cell 18 g Compatibility & Important Information These are AA-size rechargeable lithium batteries, not AAA cells. The 3.7 V rating describes the internal lithium cell and should not be interpreted as a device-output voltage. Check the voltage, polarity and battery requirements of the intended device before use. Use the USB-C charging connection in accordance with the manufacturer's charging specification. Battery charging time depends on the power source and operating conditions. Package Contents 2 × HOCO JA3 AA rechargeable lithium batteries USB-C charging cable Please to review Q: How many batteries are in the JA3 set? A: Two rechargeable AA batteries. Q: Can the batteries charge through USB-C? A: Yes. HOCO specifies USB-C charging for the JA3. Q: What is the battery energy rating? A: 3200 mWh per battery. Q: How long does charging take? A: Approximately 120 minutes under the manufacturer's stated charging conditions. Q: Can I use them in an AAA battery compartment? A: No. The JA3 is an AA-size battery; the JA4 is the AAA model. Q: Is a charging cable listed with the set? A: Yes. The manufacturer lists charging cables with the two-battery set.
