{"product_id":"kastar-np-f550-np-f570-4-pack-battery-and-ltd2-usb-charger-field","title":"Kastar NP-F550 NP-F570 4-Pack Battery and LTD2 USB Charger - Field","description":"\u003cp\u003eIn this review the Kastar 4-Pack NP-F550 \/ NP-F570 battery set with the LTD2 USB charger is evaluated for videographers who use FEELWORLD and similar on-camera monitors. The bottom line: this bundle is for shooters who need reliable, high-capacity backup power and flexible charging on location. It combines four 2900mAh lithium-ion batteries with a compact dual USB charger that can top up two cells at once and supports both Micro-USB and Type-C inputs, making it a practical utility for multi-camera shoots or long monitoring sessions.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong runtime:\u003c\/strong\u003e Each 7.4V 2900mAh lithium-ion battery delivers extended powering for monitors so the user can record and monitor longer without swapping batteries frequently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual charging:\u003c\/strong\u003e The LTD2 USB charger can charge two batteries simultaneously, which speeds turnaround when multiple spares are in use on set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeable plate:\u003c\/strong\u003e The charger can change plates to accept different battery plates, providing versatility for other compatible camera and monitor batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB input options:\u003c\/strong\u003e With Micro-USB and Type-C input and a 5V 2-3A input rating, the charger runs from common power banks and USB adapters for convenient field charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED status indicators:\u003c\/strong\u003e Intelligent LED display shows charging status and approximate battery capacity so operators can see remaining power at a glance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact power draw:\u003c\/strong\u003e The charger accepts 15W input and provides 8.4V 800mA outputs, balancing charge speed and cell safety for frequent use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe kit is best suited to independent filmmakers, run-and-gun shooters, and content creators who rely on FEELWORLD F6 PLUS, FT6, FR6 and other compatible field monitors and need several high-capacity spares. The included charger is especially useful for those who travel and prefer USB power sources over bulky mains chargers.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for users who need extremely fast professional charging racks or those who require OEM-branded batteries for manufacturer warranty reasons. If a studio setup requires hundreds of cycles per day, a higher-end charging solution may be preferable.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh 2900mAh capacity per cell provides noticeably longer runtime than many standard replacement batteries.\u003c\/li\u003e\n\u003cli\u003eDual simultaneous charging and plate interchangeability add flexibility when managing multiple battery types on set.\u003c\/li\u003e\n\u003cli\u003eUSB Micro-USB and Type-C inputs let you charge from power banks or common wall adapters while traveling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCharging speed is moderate at 800mA per channel, so full recharge of depleted cells can take a while compared with higher-power chargers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery type\u003c\/td\u003e\n\u003ctd\u003eLithium-Ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e7.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery capacity\u003c\/td\u003e\n\u003ctd\u003e2900mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharger input\u003c\/td\u003e\n\u003ctd\u003e5V 2-3A (15W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharger output\u003c\/td\u003e\n\u003ctd\u003e8.4V 800mA x1 or x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003eMicro-USB and Type-C (includes Micro USB cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Kastar 4-pack plus LTD2 USB charger is a practical value for shooters who need several dependable NP-F550\/NP-F570 style batteries and the flexibility to charge from USB sources. It is a sensible buy for on-location creators who prioritize capacity, portability, and convenience over the fastest possible charging times.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these batteries compatible with FEELWORLD monitors?\u003c\/strong\u003e\u003cbr\u003eYes, they are listed as compatible with numerous FEELWORLD models including F6 PLUS, FT6, FR6 and several FW series monitors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the charger charge two batteries at once?\u003c\/strong\u003e\u003cbr\u003eYes, the LTD2 charger supports charging two batteries simultaneously with independent LED status indicators.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power sources can be used to charge the batteries?\u003c\/strong\u003e\u003cbr\u003eThe charger accepts Micro-USB or Type-C 5V 2-3A input, so common USB power banks and adapters can be used.\u003c\/p\u003e","brand":"Kastar","offers":[{"title":"Default Title","offer_id":48632240210139,"sku":"B0B2ZGFS51","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71u567RT14L._AC_SL1500_10b01d6b-292c-4121-820a-8ff890201d9f.jpg?v=1778500610","url":"https:\/\/gearmusthave.com\/products\/kastar-np-f550-np-f570-4-pack-battery-and-ltd2-usb-charger-field","provider":"GearMustHave","version":"1.0","type":"link"}