Kastar NP-F770 4-Pack (7.4V 5800mAh) + LTD2 USB Dual Charger — Compatible with Sound Devices MixPre-3 / MixPre-6 / MixPre-10T / 663 & FEELWORLD F5 Pro 5.5

Pack of four Kastar NP-F770 lithium-ion batteries, each rated 7.4V and 5800mAh. The included LTD2 USB dual charger supports simultaneous charging of two batteries and uses an interchangeable plate to accept different battery styles. Compact and lightweight for easy transport. Charger electrical specifications: Charger Input: 5V 2-3A 15W; Output: 8.4V 800mA(x1) 800mA(x2). The smart LED indicators on the USB dual charger show charging progress and remaining battery capacity. Offers multiple input options with Micro-USB and Type-C ports and includes a Micro USB cable. Compatible with Sound Devices MixPre-3, Sound Devices MixPre-6, Sound Devices MixPre-10T, Sound Devices 663, and the FEELWORLD F5 Pro 5.5.