Power Bank Charger Sale Collections provide power bank,powerful case Terrific Limited ROMOSS Power Case 2800mAh ENCASE 7 Li-polymer Battery 5V 2A Phone Pack Battery Cover for iPhone7 Silicon Shell Power Bank Phone. Get Discount Now! Only US $20.29/piece at this time. Hurry buy Now before back to normal price! Normal price US $28.99 or you can Check price now. Dont waste your time. Buy Now only in Trusted Seller Store!
Take an appearance at our to get the finest products you want. You could review detail info regarding this item listed below. Check out our Terrific Limited ROMOSS Power Case 2800mAh ENCASE 7 Li-polymer Battery 5V 2A Phone Pack Battery Cover for iPhone7 Silicon Shell Power Bank Phone review to obtain the ideal goodss you like. You can read detail details regarding this Promo Terrific Limited ROMOSS Power Case 2800mAh ENCASE 7 Li-polymer Battery 5V 2A Phone Pack Battery Cover for iPhone7 Silicon Shell Power Bank Phone product listed below. goods costs and availability are precise since the date/time showed and go through alter. Any type of price and also availability details presented on this site at the time of acquisition will relate to the acquisition of this item.
Specifications: 
- Certification of the FCC \ CE- Compatibility with iphone 7 TIPS:In the course of our sales, we found that some customers may not understand the knowledge of the battery,then gave us a bad evaluationSo I would like to explain in this way: First we should know two things: voltage and current.Use the formula: power = voltage x current (Batteries of power banks are 3.7V output)Every power bank has a conversion rate. Higher end power banks possess around 90% conversion rate. Power bank conversion rate is also related to batteries used in the production. Lithium-polymer rechargeable batteries have a work output conversion rate that is generally 85% -95%, and lithium-ion (18650) battery possesses an output conversion rate between 75% - 90%. To calculate conversion rate with the real capacity and charging times you do the following:Smartphone charging is dynamic of around 500MA-1000MA with the voltage at 5V.If the battery power is marked 4000mAh, then the power of a 4000mAh power bank should be 4 * 3.7 = 14.8W, calculate by our polymer batteries conversion rate of 80%, the real total power supply for charging can be 11.8W. Take a 1500mA smart phone for example, the demand power is 3.7*1.5 = 5.55W, then it can charge the phone two times. So if you want to charge your tablet, you need a larger capacity power bank, the power bank capacity should be more than 8000MA and can provide high current 2A output charging requirements.If you have any questions, please contact our customer service , we will reply to you as soon as possible 
. 1*Romoss ENCASE28. 1*User Manual
Return Policy
If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service
On-time Delivery: If you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).Terrific Limited ROMOSS Power Case 2800mAh ENCASE 7 Li-polymer Battery 5V 2A Phone Pack Battery Cover for iPhone7 Silicon Shell Power Bank Phone
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