{"product_id":"kastar-4-pack-np-f550-np-f570-battery-and-charger-set","title":"Kastar 4-Pack NP-F550\/NP-F570 Battery and LTD2 USB Charger - Reliable","description":"\u003cp\u003eIn this review of the Kastar 4-Pack NP-F550\/NP-F570 battery kit the bottom line is simple: this bundle is aimed at shooters and monitor users who need reliable, swappable power without carrying a tangle of proprietary chargers. The reviewer found it especially useful for extended on-location shoots where the FEELWORLD F570 and similar 5.5- to 7 in field monitors are used, because the 2900mAh lithium-ion cells and the dual-slot LTD2 USB charger let the operator keep two spares charged and ready. The kit is practical, compact, and focused on delivering usable runtime rather than extra gadgetry.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh capacity batteries:\u003c\/strong\u003e Each 2900mAh lithium-ion cell delivers extended runtime for field monitors so you spend more time shooting and less time swapping power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual charging:\u003c\/strong\u003e The LTD2 USB charger can charge two batteries simultaneously, which reduces downtime between takes when multiple cells are used.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible input options:\u003c\/strong\u003e Micro-USB and Type-C input support means you can power the charger from common USB power banks or wall adapters while on location.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal plate change:\u003c\/strong\u003e The charger plate can be swapped to support different battery plates, making it useful for other camera accessories beyond FEELWORLD monitors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and portable:\u003c\/strong\u003e With a 5V 2-3A 15W input and lightweight batteries, the set is easy to carry in a kit bag or pocket for run-and-gun shoots.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis kit is ideal for videographers and photographers who use on-camera field monitors such as FEELWORLD F570, FW568 V2, or similar monitors that accept NP-F550\/NP-F570 batteries. It suits solo shooters and small crews who need straightforward, compatible spares that charge from USB power sources between scenes.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include users who require proprietary fast-charging systems tied to a specific brand ecosystem or users who need batteries with voltages or capacities outside the NP-F550\/NP-F570 standard. For high-end broadcast rigs with built-in plate chargers, a manufacturer-specific solution may be preferable.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh 2900mAh capacity provides noticeably longer runtime than older NP-F cells.\u003c\/li\u003e\n\u003cli\u003eThe LTD2 charger handles two batteries at once, cutting total recharge time for a set of spares.\u003c\/li\u003e\n\u003cli\u003eUSB power inputs (Micro-USB and Type-C) add convenience for charging from common power banks.\u003c\/li\u003e\n\u003cli\u003eInterchangeable plate increases compatibility across different devices and batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe charger output is modest (8.4V 800mA per slot), so recharge can be slower than higher-power dedicated desktop chargers.\u003c\/li\u003e\n\u003cli\u003eThere is no included high-power wall adapter, only a Micro USB cable, so a suitable USB supply must be provided separately.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\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 (Micro-USB and Type-C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharger Output\u003c\/td\u003e\n\u003ctd\u003e8.4V 800mA (x1) and 800mA (x2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSimultaneous Charging\u003c\/td\u003e\n\u003ctd\u003eCharges up to 2 batteries at the same time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Kastar 4-pack with LTD2 USB charger is a practical, cost-effective way to extend runtime for FEELWORLD and other NP-F550\/NP-F570-compatible monitors. It delivers useful capacity and the convenience of USB charging, making it good value for independent filmmakers and run-and-gun shooters who need dependable spare batteries without extra bulk.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these batteries compatible with FEELWORLD F570 and similar monitors?\u003c\/strong\u003e\u003cbr\u003eYes, the NP-F550\/NP-F570 format matches the battery plates used on FEELWORLD F570 and many other FEELWORLD monitors listed in the product description.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the charger power batteries from a portable power bank?\u003c\/strong\u003e\u003cbr\u003eYes, the LTD2 accepts 5V input via Micro-USB or Type-C, so it can be used with USB power banks capable of 2-3A output.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the kit include a wall adapter?\u003c\/strong\u003e\u003cbr\u003eNo, the package includes a Micro-USB cable; a separate USB power adapter or power bank is required for wall charging.\u003c\/p\u003e","brand":"Kastar","offers":[{"title":"Default Title","offer_id":48193229848795,"sku":"B0B2ZTMHRG","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71u567RT14L._AC_SL1500_50cc093f-a0cb-4232-984c-e20234aa7502.jpg?v=1770353795","url":"https:\/\/gearmusthave.com\/products\/kastar-4-pack-np-f550-np-f570-battery-and-charger-set","provider":"GearMustHave","version":"1.0","type":"link"}