{"product_id":"neewer-q4-battery-pack-21-6v-2800mah-li-ion-reliable-studio-backup","title":"NEEWER Q4 Battery Pack 21.6V 2800mAh Li-ion - Reliable Studio Backup","description":"\u003cp\u003eIn this review of the NEEWER Q4 Battery Pack the bottom line is simple: photographers who already own the NEEWER Q4 400Ws 2.4G TTL flash will find a dependable, high-capacity replacement battery that restores full mobility without buying a whole flash. The reviewer found the single biggest reason to buy is the sustained run time - a 21.6V\/2800mAh Li-ion cell rated for up to 400 full power flashes on a single charge - which makes it a straightforward way to keep a Q4 flash working through long shoots. This review focuses on fit, runtime, safety features, and portability.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel compatibility:\u003c\/strong\u003e Designed exclusively for the Q4 flash, it ensures proper fit and electrical match with the NEEWER Q4 400Ws 2.4G TTL unit for plug-and-play replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh capacity cell:\u003c\/strong\u003e The 21.6V, 2800mAh Li-ion polymer battery offers extended run time so a single session is less likely to be interrupted for charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 400 full power flashes:\u003c\/strong\u003e One full charge can deliver up to 400 full power pops, which is useful for long on-location or studio shoots where changing batteries is inconvenient.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in protections:\u003c\/strong\u003e Integrated safeguards against over charge, over discharge, over voltage, over current, and overheating help protect the flash and improve reliability during heavy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight and portable:\u003c\/strong\u003e At about 0.9lb (410g) this replacement battery is easy to carry as a spare without adding significant weight to a kit bag.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis battery is aimed squarely at photographers and content creators who already own the NEEWER Q4 400Ws 2.4G TTL flash and need a direct replacement or spare power source to extend shooting time. It is particularly useful for wedding photographers, portrait shooters, and location shooters who require many full-power flashes between charges.\u003c\/p\u003e\u003cp\u003eIt is not for users who do not already have a Q4 flash, since the pack is exclusively compatible with that model and the charging adapter is not included. Buyers who need a multi-brand universal battery or a charging kit should look elsewhere or plan to reuse the original Q4 adapter.\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 capacity cell gives long runtime and up to 400 full power flashes per charge.\u003c\/li\u003e\n\u003cli\u003eSafety protections reduce risk of damage from charging or heavy use.\u003c\/li\u003e\n\u003cli\u003eLightweight design makes it easy to keep as a spare without extra bulk.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCharging adapter is not included, so users must reuse the original Q4 adapter or purchase one separately.\u003c\/li\u003e\n\u003cli\u003eStrictly limited to the Q4 flash family, so it is not a universal replacement for other models.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eExclusive for NEEWER Q4 400Ws 2.4G TTL flash\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e21.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e2800mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEstimated full power flashes\u003c\/td\u003e\n\u003ctd\u003eUp to 400 per charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApproximately 0.9lb \/ 410g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtections\u003c\/td\u003e\n\u003ctd\u003eOver charge, over discharge, over voltage, over current, over heating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe NEEWER Q4 Battery Pack is a practical, value-minded replacement for Q4 flash owners who need reliable extended runtime and built-in protections. It delivers the key benefit photographers care about - consistent full power flashes across long sessions - while remaining light and portable. Buy this if you own a Q4 flash and want a straightforward spare; just remember the charging adapter must be supplied separately.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs the charger included?\u003c\/strong\u003e\u003cbr\u003eNo. The charging adapter is not included; use the adapter that came with your original Q4 flash or purchase a compatible adapter separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this battery work in other flash models?\u003c\/strong\u003e\u003cbr\u003eNo. This battery is exclusively compatible with the NEEWER Q4 400Ws 2.4G TTL flash and is not a universal replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long does one charge last?\u003c\/strong\u003e\u003cbr\u003eOne full charge can provide up to 400 full power flashes, making it suitable for extended shoots without frequent swaps.\u003c\/p\u003e","brand":"NEEWER","offers":[{"title":"Default Title","offer_id":48621731381467,"sku":"B0CFVFKSNN","price":142.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61wR1QzvAAL._AC_SL1500.jpg?v=1778473242","url":"https:\/\/gearmusthave.com\/products\/neewer-q4-battery-pack-21-6v-2800mah-li-ion-reliable-studio-backup","provider":"GearMustHave","version":"1.0","type":"link"}