{"product_id":"21700-polly-downtube-ebike-battery-36v-72v","title":"21700  EBike Battery Downtube Polly 72V 60V 52V 48V 24Ah 36V 27Ah 22.5Ah 14.4Ah Baterias for 2000W 1500W 1000W 750W 350W Motor","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 0, 255);\"\u003eExpected Arrival Within 5–8 Days\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUpgrade your electric bike with our high-performance \u003cb\u003e21700 Cell Polly-Series Downtube Battery\u003c\/b\u003e. Engineered for efficiency, durability, and a sleek frame-mounted fit, this battery is the perfect choice for everything from daily commuting to high-torque off-road adventures. Built with premium-grade 21700 lithium cells, it offers superior energy density and long-cycle life compared to standard 18650 packs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUniversal Power Compatibility:\u003c\/b\u003e Available in multiple voltage configurations (36V, 48V, 52V, 60V, 72V) to perfectly match your specific motor setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHigh-Discharge Performance:\u003c\/b\u003e Optimized for a wide range of motor wattages, supporting systems from \u003cb\u003e350W up to 2000W\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAdvanced Smart BMS:\u003c\/b\u003e Integrated Battery Management System provides essential protection against over-charge, over-discharge, short-circuits, and overheating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePremium 21700 Cells:\u003c\/b\u003e Equipped with high-capacity 21700 lithium cells for better thermal stability, longer range, and a consistent power curve.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSecure Polly Design:\u003c\/b\u003e The aerodynamic, lockable downtube \"Polly\" housing keeps your battery protected and balanced on the bike frame.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eReady-to-Use Kit:\u003c\/b\u003e Each battery comes with a matching charger, frame-mounting bracket, and security keys.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"UGNE","offers":[{"title":"36V 20Ah LG Hialong 2","offer_id":47980572704905,"sku":null,"price":239.15,"currency_code":"USD","in_stock":true},{"title":"48V 18.2Ah Polly-3","offer_id":47980572573833,"sku":null,"price":225.46,"currency_code":"USD","in_stock":true},{"title":"48V 20Ah LG Hialong3","offer_id":47980572606601,"sku":null,"price":287.83,"currency_code":"USD","in_stock":true},{"title":"36V 25Ah LG Hialong3","offer_id":47980572639369,"sku":null,"price":272.62,"currency_code":"USD","in_stock":true},{"title":"36V 25Ah EVE Polly-8","offer_id":47980572541065,"sku":null,"price":305.92,"currency_code":"USD","in_stock":true},{"title":"52V 20Ah LG Polly-8","offer_id":47980572672137,"sku":null,"price":305.92,"currency_code":"USD","in_stock":true},{"title":"52V 24Ah LG 50 A","offer_id":47980572737673,"sku":null,"price":320.79,"currency_code":"USD","in_stock":true},{"title":"48V 25Ah LG 50 A","offer_id":47980572770441,"sku":null,"price":333.13,"currency_code":"USD","in_stock":true},{"title":"48V 24Ah LG 50 A","offer_id":47980572803209,"sku":null,"price":312.33,"currency_code":"USD","in_stock":true},{"title":"52V 25Ah LG 50 A","offer_id":47980572835977,"sku":null,"price":347.66,"currency_code":"USD","in_stock":true},{"title":"60V 20Ah LG 50 A","offer_id":47980572868745,"sku":null,"price":341.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/7101\/2233\/files\/21700_Polly_downtube_e-bike_battery_pack_showing_mounting_bracket_and_key_lock.png?v=1787303547","url":"https:\/\/ugne.us\/products\/21700-polly-downtube-ebike-battery-36v-72v","provider":"UGNE Parts","version":"1.0","type":"link"}