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We will provide the best customer service Welcome to our information 2/5/10/20 Pcs 3.7V 1200mAh 503759 Lithium Polymer Ion Battery 2.0mm JST Connector 2/5/10/20Pcs 3.7V 1200mAh 503759 Lithium Polymer Ion Battery 2.0mm JST Connector Item Description Dimension and specification Dimension and specification T thickness 5mm(max) 0.191inch(max) W width 37mm(max) 1.45 inch(max) L length 59mm(max) 2.32inch(max) L1 line 70mm(minimum) 2.75inch(minimum) JST Connector(if you need other size,please contact us) Positive/negative/no terminal PH2.0-2P PH2.0-2P Use Attentions Connecting Wiresccc Red: connect to “+” Black : connect to “—” Use Attentions Warnings 1 Do not expose to, dispose of the battery in fire. 2 Do not put the battery in a charger or equipment with wrong terminals connected. 3 Avoid shorting the battery. 4 Avoid excessive physical shock or vibration. 5 Do not disassemble or deform the battery. 6 Do not immerse in water. 7 Do not use the battery mixed with other different type or model batteries. 8 Keep out of the reach of children. Storage 1 , The Li-ion battery pack should be stored in a cool, dry and well-ventilated area, and should be far from the fire and the high temperature. 2 , The battery should store in the product specification book stipulation temperature range, the best storage temp. is 25±5℃. The best humidity is 60±15%. 3 , The battery should be stored within room temperature, and charged to 40%~60% electric quantity （ 3.85V ） . In order to avoid over-discharge, we suggest charge and discharge the batteries every three months.,Then charge to40%~60%electric quantity(3.85V). Transportatio n 1 Do not mix the battery products with other car gos. 2 Do not immerse the battery products in water or allow it to get wet. 3 Do not over 7 layers staking and upside-down. 4 The highest temperature in transportation is lower than 65℃. Charge 1 Battery must be charged in appropriate charger only. 2 Never use a modified or damaged charger. 3 Do not leave battery in charger over 24 hours. 4 Charging current: Can not surpass the biggest charging current which in this specification book stipulated. 5 Charging voltage: Does not have to surpass the highest amount which in this specification book stipulated to decide the voltage. 6 Charge temperature: The battery must carry on the charge in the ambient temperature scope which this specification book stipulated. 7 Uses constant current and constant voltage way charge. PLS connect the positive and negative terminals in right way, or the battery may be damaged. Discharge : 1 The discharging current should not surpass the biggest discharging current this specification book stipulation, The large discharge current can cause heat and lower capacity. 2 Discharge temperature: The battery discharge must carry on in the ambient temperature scope which this specification book stipulated. 3 Over-discharge: After short time over discharge, then charge immediately won’t damage the battery. But the battery will be damaged for being long time over discharged. During long-term storage, the battery may be within over-discharging condition for self discharge. To prevent the occurrence of over discharging, the battery should maintain the certain capacity when storage. Handling of Cells 1 Soft Al foil ●Don’t strike battery with any sharp edge parts ●Trim your nail or wear glove before taking battery ●Clean worktable to make sure no any sharp particle 2 Sealed edge may be damaged by heat above 100°C, bend or fold sealed edge. 3 Handling of Tabs The battery tabs are not so stubborn especially foraluminous tab. Do not bend tabs unnecessarily. 4 Tab Connection Ultrasonic welding or spot weldingis recommended for LIP tab connection method. Battery pack should be designed that shear force are not applied to the LIP tabs. If apply manual solder method to connect tab with PCM, below notice is very important to ensure battery performance: n The solder iron should be temperature controlled and ESD safe; n Soldering temperature should not exceed 370°C; n Soldering time should not be longer than 3s; n Soldering times should not exceed 5 times, Keep battery tab cold down before next time soldering; n Directly heat cell body is strictly prohibited, Battery may be damaged by heat above approx. 100°C Payment We accept multiple payment methods: Debit/Credit Card,QIWI,WebMoney,Yandex.Money,SMS,Ebanx,PPRO,Mercado Pago,PayPal,Doku,Mpesa,Klarna,Cash Payment,Wire Transfer/Bank Transfer/TT,Western Union,COD,installment etc. Please send payment within 3days after bids end or your purchase. If you expect any delays in payment, please let me know. Shipping 1.We deliver this item to worldwide via regular registered air mail with tracking number. For example (AliExpress Standard Shipping , YANWEN Air Registered , 4PX Air Registered , China Postal Registered, sometimes USPS) 2.IF YOU NEED FASTER CARRIER, PLEASE CONTACT US FOR THE UPS/DHL/FEDEX DISCOUNT . WE SUGGEST FEDEX. 3.The item will be sent out 1 working day after the payment confirmed. The shipment usually takes 7-13 business days to reach most of other destinations around the world, but in some rare circumstances or a custom delay it may take longer, especially these countries, Russia, Brazil, Italy, etc. Please contact us if you have not received your package ter 3 weeks. PS:Please make sure the shipping address is correct when making payment, If you need to change the address, you need to contact us within 8 hours to make the change, so that the package cannot be changed after it is sent to the wrong address.(We do not accept any change address through email) Return policy If your order has been received and it is not what you ordered, or your item has a manufacturer defect, please contact us within 7 business If it is proved to be a wrong item or have a manufacturer defect, please send back the item and we will send you a replacement for free. Buyer needs to pay the return freight charge(negotiable on a case-by-case basis）.Please contact me before you send the item back, correct shipping address should be confirmed. Please ensure the item will be returned in good condition with the original packaging. Distributor: We can also accept the special offers from distributor for bulk order, please contact with us by email. Feedback Your feedback is very important for us, positive feedback is highly appreciated. Please let us know before leaving any negative feedback, please give us the opportunity to solve any problems and we will try our best to satisfy your needs. Customer service If you have any questions, please send us a message on aliexpress. Because time zone is different, we will answer your questions within 24 hours

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