{"product_id":"kab-be-18650-battery-extension-board-for-bluetooth-amps-portable","title":"KAB-BE 18650 Battery Extension Board for Bluetooth Amps - Portable","description":"\u003cp\u003eIn this review the Dayton Audio KAB-BE 18650 battery extension board is assessed as a practical power accessory for portable audio builders who want a neat, rechargeable battery solution. The bottom line: it is for hobbyists and DIY audio makers who need a compact way to add three 18650 Li-Ion cells to a KAB Bluetooth amplifier and want built-in safety features. Our review finds the KAB-BE most valuable because it combines charging capability, under\/over voltage protection and cell balancing in a single plug-in board designed to connect directly to KAB amp boards.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnder\/over voltage protection:\u003c\/strong\u003e Prevents overcharging and protects batteries from harmful voltage extremes so the pack lasts longer and is safer to use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage balancing:\u003c\/strong\u003e Keeps all three cells at similar charge levels so the amplifier remains powered even if one cell is weaker than the others.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree 18650 capacity:\u003c\/strong\u003e Holds three 18650 Li-Ion batteries, offering extended runtime compared with single-cell solutions when paired with a KAB amp board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect plug-in cable:\u003c\/strong\u003e Built-in 8in 4-conductor cable plugs directly into Dayton Audio KAB Bluetooth amplifier boards for a tidy, tool-free connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact integration:\u003c\/strong\u003e The board combines charging and protection circuits in a small package suitable for portable sound projects and custom enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe KAB-BE is aimed at DIY audio builders, hobbyists and installers who already use Dayton Audio KAB Bluetooth amplifier boards and want a removable, rechargeable battery pack option. It is ideal for portable speaker projects, demo units, or anywhere a tidy three-cell Li-Ion power source is needed.\u003c\/p\u003e\n\n\u003cp\u003eThose who should look elsewhere include users who need an integrated battery pack with cells included or plug-and-play consumer speakers; the KAB-BE is a board-only solution and requires three 18650 cells to be purchased separately and installed by the user.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in under\/over voltage protection gives safer charging and discharging for user-supplied 18650 cells.\u003c\/li\u003e\n\u003cli\u003eVoltage balancing improves runtime stability and reduces the chance of one weak cell causing shutdowns.\u003c\/li\u003e\n\u003cli\u003eDirect 8in 4-conductor cable allows fast, clean connection to compatible KAB Bluetooth amp boards.\u003c\/li\u003e\n\u003cli\u003eCompact design fits neatly into portable audio builds without bulky external chargers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequires separate 18650 Li-Ion batteries, so additional purchase and cell mounting are necessary before use.\u003c\/li\u003e\n\u003cli\u003eIntended specifically for KAB series amplifier boards, so compatibility is limited to those systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eBattery extension\/charging board for KAB Bluetooth amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery type\u003c\/td\u003e\n\u003ctd\u003eThree 18650 Li-Ion cells (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eUnder and over voltage protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalancing\u003c\/td\u003e\n\u003ctd\u003eVoltage balancing across the three cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable\u003c\/td\u003e\n\u003ctd\u003eBuilt-in 8in 4-conductor cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePlugs directly into Dayton Audio KAB Bluetooth amp boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe KAB-BE is a sensible, value-minded accessory for anyone building portable sound systems with Dayton Audio KAB Bluetooth amplifier boards. It combines charging, protection and balancing in a compact board that keeps projects tidy and batteries healthier over time. Buy it if you supply your own 18650 cells and need a clean, compatible battery option for KAB-based builds.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the board include batteries?\u003c\/strong\u003e\u003cbr\u003eThe KAB-BE does not include batteries; it holds three 18650 Li-Ion cells which must be purchased separately.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill it connect to other amplifier boards?\u003c\/strong\u003e\u003cbr\u003eIt is designed to plug directly into Dayton Audio KAB Bluetooth amplifier boards using the built-in 8in 4-conductor cable, so compatibility with other amps is not guaranteed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the board charge and balance cells?\u003c\/strong\u003e\u003cbr\u003eYes, the board provides charging with under\/over voltage protection and voltage balancing across the three cells to maintain runtime stability.\u003c\/p\u003e","brand":"Dayton Audio","offers":[{"title":"Default Title","offer_id":46759219364059,"sku":"B01NC3G2NV","price":9.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71WPPHnXImL._AC_SL1500.jpg?v=1747854848","url":"https:\/\/gearmusthave.com\/products\/kab-be-18650-battery-extension-board-for-bluetooth-amps-portable","provider":"GearMustHave","version":"1.0","type":"link"}