{"product_id":"36v-7ah-upgrade-replacement-battery-rfn-warrior-kids-sx-e250-sx-e400","title":"BATTERYINT 36V 7Ah Upgrade Replacement Battery for RFN Warrior Kids SX-E250 \u0026 SX-E400 Electric Dirt Bike","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eUpgrade your riding capacity with the BATTERYINT 36V 7Ah High-Capacity Replacement Lithium-Ion Battery for RFN Warrior Kids SX-E250 and SX-E400 electric dirt bikes. With 252Wh of rated energy, this battery provides approximately 34.6% more rated capacity than the standard 36V 5.2Ah battery, offering the potential for longer riding sessions between charges. Its compact form factor and XT60 female discharge connector are designed for replacement applications where the physical fit and electrical connections match.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh-Capacity 7Ah Upgrade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Delivers 252Wh of rated energy, compared with 187.2Wh for a 36V 5.2Ah battery. Actual riding time and range vary with rider weight, terrain, speed setting, riding style, and battery condition.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDesigned for RFN Warrior Kids Models:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Intended for the RFN Warrior Kids SX-E250 and SX-E400. The stated battery dimensions are approximately 195 × 70 × 40 mm; verify compartment fit and connector compatibility before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e10S2P Lithium-Ion Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Uses 18650 lithium-ion cells rated at 3,500mAh per cell to achieve a nominal 7Ah capacity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIntegrated BMS Protection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The built-in battery management system is specified to provide protection against overcharging, over-discharging, overcurrent, short circuits, and high temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eXT60 Female Discharge Connector:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides the specified battery output connection for compatible setups. Check the existing battery's connector and wiring before replacement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompatible Charging Setup:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for charging with a compatible 42V 2A lithium-ion charger through the specified 5.5mm DC charging port. Estimated full-charge time is approximately 3.5–4 hours; actual charging time depends on the charger and charging conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact, Lightweight Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximate dimensions of 195 × 70 × 40 mm and weight of 1.15 kg make it suitable for applications requiring a compact replacement battery.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBrand: BATTERYINT\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBattery Type: Lithium-Ion\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNominal Voltage: 36V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFull-Charge Voltage: 42V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRated Capacity: 7.0Ah (7,000mAh)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEnergy Capacity: 252Wh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCell Configuration: 10S2P\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCell Type: 18650 Li-ion, 3,500mAh per cell\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDischarge Connector: XT60 Female\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCharging Port: 5.5mm DC\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRecommended Charger: Compatible 42V 2A lithium-ion charger\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEstimated Charging Time: 3.5–4 hours\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDimensions: Approximately 195 × 70 × 40 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWeight: Approximately 1.15 kg\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: RFN Warrior Kids SX-E250, RFN Warrior Kids SX-E400\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCondition: Brand New\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDefect Support Period: 90 days from shipment, subject to BATTERYINT's Return and Refund Policy\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInstallation and Safety\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBefore ordering, confirm your bike model, battery compartment dimensions, discharge connector, and charging-port compatibility. Use only a compatible 42V lithium-ion charger. Fully charge the battery before first use according to the applicable charging instructions, and store it in a cool, dry place away from direct sunlight. Contact BATTERYINT Customer Service at \u003c\/span\u003e\u003ca href=\"mailto:sales@batteryint.com\"\u003e\u003cspan\u003esales@batteryint.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e for assistance with a suspected defect and obtain return authorization before sending any product back.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant Compatibility Note:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The 7Ah capacity is an upgrade specification, not the stated original factory capacity. Confirm that your particular bike version supports the replacement battery's dimensions, electrical requirements, and connections before installation.\u003c\/span\u003e\u003c\/p\u003e","brand":"BATTERYINT","offers":[{"title":"Default Title","offer_id":60384773374238,"sku":"BI-KB-INR10S2P1835-XT60","price":105.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/2130\/7820\/files\/rfn-warrior-kids-sx-e250-sx-e400-36v-7ah-battery.jpg?v=1792486551","url":"https:\/\/batteryint.com\/ja\/products\/36v-7ah-upgrade-replacement-battery-rfn-warrior-kids-sx-e250-sx-e400","provider":"BATTERYINT","version":"1.0","type":"link"}