Specifications High-concerned chemical:None Nominal Capacity:3500mAh Weight:250g Voltage:14.4v Size:74x51x50.5mm/2.91x2x2inches Application:for iRobot Roomba Model Number:i7 roomba battery Type:Li-Ion Brand Name:Aleaivy Origin:Mainland China Rated Voltage:14.4 V Cycle Life:about 800 times Battery Weight:250g/8.81 ounces Battery Cells:100% Brand New Please note: For customers in the Canary Islands/Balearic Islandsof Spain, whose zip code is 35000-35999/38000-38999/07000-07999. Please choose the shipment from Spain, but the shipment is not free.Please contact us before paying. Thank you! Replacement Battery for iRobot Roomba: For iRobot Roomba i Series : i7 7150 i7+ 7550 i4 4150 i4+ 4552 i3 3150 i3+ 3550 i7158 i7550 i755020 For iRobot Roomba e Series: e5 5150 e5150 e515020 e5152 e5154 e5158 e515840 e6 e6198 e619820 Part Number: ABL-D1,4624864 Please note: The battery is not compatible with i8/i8+ Specification: Battery type: Lithium Ion Battery capacity: 3500 mAh Battery weight: 250g/8.81 ounces Battery voltage: 14.4 V Battery dimensions: 2.91 * 2.0 * 2 in / 74 * 51 * 50.5mm Cycle life: 1000 cycles Shell material: High quality ABS Feature: High Capacity Cells: The Aleaivy 37.44Wh 2600mAh Battery is specially designed for your iRobot Roomba Vacuum I & E Series(Please note:battery isn't compatible with iRobot Roomba i8/i8+). 2900mAh Battery :Aleaivy upgrade battery 2600mAh have Longer duration than the battery 1800mAh. Aleaivy upgrade battery provides longer runtime for your robot. Safe to use: Built-in circuit protection ensures both safety and stability (over charging, short circuit, high temperature, and over dicharging protection). Easy to Install: Remove the side brush first, then unscrew 5 screws on the bottom lid, pull the old battery out and replace the new one, then revive your robot again. Please fully charge the battery before using it for the first time. after-sale warranty: Our store support 30-day money back and 1 year warranty. 1.We will send the goods out within 4 days once your payment is completed. 2.Any import charges or fees are the buyer's responsibility. 3.We will sent you a tracking number when we post your item, Please check it and keep in touch with your local office. 1.All the payment is protected by Escrow. Payment way:credit card; moneybookers; T/T; western and so on. 2.Please pay within 3 days of order. 1.As your feedback (5 stars) is really important to us, please take a few minute to leave the positive feedback if you are satisfied with our products and service. Thanks! 2.Please dont hesitate to contact us before you leave negative or neutral feedback. We will try our best to resolve your problem and meet your need. If you have any question, please feel free to contact us or leaving messages. We are always stand by to reply you. We sincerely hope you can find what you like here. Your satisfaction is important to us and we value your business. Thank you for your support!Have a nice day!