9v Rechargeable Batteries, 4-Pack 850mAh 9 Volt Li-ion Batteries with 9V Battery Charger for Smoke Detectors, Alarms【Safety and Performance】9V Rechargeable Batteries there are five protections for this battery, with intelligent control of the entire charging process, built-in protection device to prevent overcharge, overvoltage, overcurrent, over discharge, reverse charge protection with CE and RoHS/PSE Safety Certification,can protect the battery and charger very good.【wide application】9V rechargeable Li-ion battery is suitable for various electrical appliances such as wireless microphones, multimeters, electric guitars, walkie-talkies, toy remote controls, massagers, etc. It is safe and stable, Ideal replacement for the everyday 9V battery, becomes the common choice of hundreds of families.【Standard 9V batteries】Standard 9V battery, charging is very fast, capacity 850mAh,the battery cycle life can reach 2000 times.High-power load capacity, the battery can reach 2.3A discharge capacity, which is convenient for high-intensity electrical appliances.【Fast battery charger】Rechargeable 9v batteries Constant voltage charging is controlled by IC, standard charging method: Input: 5V 2A,only need 4h to fully charge 4 batteries one time.Independent charging channel, four channels can charge 1 to 4 batteries,LED displays the charging status of each slot, the red light is always on when charging, and it turns off green when it is full.【Operating temperature】rechargeable 9v batteries is ensures good performance in all weather conditions or extreme temperatures from -4 ° F to 140 ° F.The most prominent feature of this battery is low self-discharge, is about 0.03% per month, which is less than 1/100 of Ni-MH batteries. Smart and Security: The Pallus Both battery and charger with built-in Protection of over-charge, over-discharge, short-Circuit, reverse polarity and over-heated, to protect the battery safety charged. NOTICE: !!! DON'T USE THE CHARGER CHARGE ANY OTHER BRAND BATTERY, CHARGE Pallus 9V RECHARGEABLE LI-ION BATTERY ONLY. (DO NOT CHARGE ALKALINE OR Ni-MH Ni-CD)The standard voltage of Other brands' 9V lithium-ion rechargeable batteries is 8.2V-8.4VOur 9V Li-ion battery contains 2 high-quality batteries(per cell voltage is 4.35V), standard voltage is 8.2V-8.7V9V Battery Specification:Capacity:850mAhChemistry:Li-ionWeight:33gLife Cycles:>500 cycles lifeOperating Temperature:-20℃ to 60℃Storage Temperatere:-20℃ to 45℃Self-Discharge:<10% per monthSmart Charger Specification:Input voltage:5VInput current:2.3AOutput voltage:8.7VOutput current:500mA*4Weight:62gLED:Light Red when charging,Light green when fully chargedPaymentDelivery detailsTerms of salesAbout usContact usPayment Before the payment, please double check your shipping address, because it cannot be changed once purchase has been made. Payments are expected within 3 days once the auction ended. We accept payment via Paypal, Google Pay and Credit Card.Delivery detailsItems are shipped within 24 hours of payment clearance(during business day). Usually the shipping time of 2nd Class is 3-5 business days, 1st Class is 1-3 business days. The international shipping time is 7-15 business days. Please allow few more days during busy season. We will ship all battery products by USPS or UPS.Terms of sales1. You must contact us by email if you wish to return items to us, or if there is a problem with your order. Please choose the topic I have a question about using my item or I want to send the seller a message in your eBay Purchase History to tell us your problem or request a return and we respond as quickly as possible. 2. We offer a 30-day money back guarantee should you be unhappy with the item for any reasons. In this case, we accept buyer to send back the items at buyer's expenses for the shipping cost (Buyer pays return shipping cost). 3. Returned items should be unused and must be returned in the original packaging. We will issue a full refund on receipt, excluding the original delivery charge. Or if preferred, we will exchange the item. 4. In order for us to process your refund swiftly, please provide your eBay ID, address, and order ID inside your package, along with a note explaining the reason for return and/or the nature of any fault(s). About usOur company specializing in rechargable lithium ion battery and solution for energy storage. We has custom-designed more than 1000 sets of reliable and high performance Li-ion battery solutions for over 150 clients. Apart from Battery Pack Division, we also have Smart Car Charger and Electric Scooter Division in our industrial park. Product quality and safety are our first priority at every stage of design, R&D and validation, which enable us to comply with all relevant national and international safety and quality standards such as UL, IEEE, GB, CE, IEC, KC, PSE, BSMI and more.Contact usIt is our aim to answer all queries within 1-2 working day. We are here to help and assist you and if you have any questions or queries, please contact us through ebay system or our ebay registered email address.