3.7V battery for Palm Treo Treo 500, Treo 500V, Treo 550V, Treo 500p, Treo 550 Type: Li-ion Capacity: 2200mAh Voltage: 3.7V Fit to the device models: Palm Treo 690, Treo Treo 500, Treo 500V, Treo 500p, Treo 550, Treo 550V, Palm Otto Extended cover Compatible with the battery part numbers: 157-10099-00 RoHS Approved for toxic free All batteries are certified with CE and ISO9001 * Please check with your device model number and battery part number, both have to be match as stated in the listing. Any questions, please feel free to contact us. We promise to dispatch your order within one working day of receiving verified payment. Please exclude weekends and holidays on all shipping. As a UK seller, all our goods are sent from the UK, except international shipping address. Majority of UK orders are delivered within 1-3 working days for 1st Class Delivery and 3-5 working days for 2nd Class Delivery; however this will depend on Royal Mail. For urgent orders, we would recommend Next Day Courier service, we open 5 days a week between 10am and 5pm Mon to Fri. We accept all major debit and credit card through PayPal. If you would like to use other payment method. please contact us.