Kastar NP-F990EXP 4-Pack Battery — Replacement for Sound Devices MixPre-3/MixPre-6/MixPre-10T, Sound Devices 663, FEELWORLD F5 Pro 5.5 & Desview R5 5.5 inch Touchscreen On-Camera Field Monitor

Designed as a high-capacity replacement, the Kastar NP-F990EXP batteries deliver extended runtime for compatible mixers and 5.5 inch on-camera monitors. These cells accept Type-C charging using a 5Volt 2A~3A adapter for fast wall or mobile charging. They also feature a 5V 2.1A output so a battery can double as a power bank, and a 4 LED lights indicator on each battery makes remaining charge easy to check at a glance. Key specifications: - Battery Type: Lithium-Ion - Nominal Voltage: 7.4V - Capacity: 11600mAh, 85.8Wh Safety and protection: Kastar lithium-ion cells comply with UL1642 & CE safety standards and include a built-in protection circuit guarding against over-charge, over-discharge, over-voltage, over-current, and over-heating. Why choose these batteries: They offer longer run time and enhanced protection compared to lower-quality replacements, helping reduce the need for frequent swaps and extending cycle life. Ideal as direct replacements for Sound Devices MixPre-3, MixPre-6, MixPre-10T, Sound Devices 663, FEELWORLD F5 Pro 5.5, Desview R5 and other devices that use the NP-F990EXP format. Package Includes: 4-Pack Batteries