Help manual Due to the new policy of the Russian customs, please fill in the full name of the consignee. We guarantee that this product is purchased from the original factory accessories sales channels, absolutely 100% genuine original. Without formal authorization, we cannot sell on aliexpress.Important Before a new lithium-ion battery is fully charged, it must be fully charged and fully discharged 2 to 3 times. Remember, only after 2 to 3 complete charge and discharge cycles can the full performance and life of the new lithium-ion battery be achieved. After 2 to 3 cycles, you no longer need to adjust the battery! Due to the cold weather in some areas in winter, the battery may be consumed faster, which is normal. Once the appropriate problem is reached, the battery can return to normal use time. Transport After payment, we will ship your items within 24-48 hours.Since batteries are dangerous goods, the transportation time is longer than ordinary cargo.Usually Russian and Ukrainian buyers can receive the package in about 20-40 days, and it takes about 25-45 days in winter.Most countries in Europe require approximately 30-45 days for transportation. If your package has not updated the tracking information for a long time, please contact us in time, please do not worry that we will check the status of the package for you in the first time. Feedback Dear customers and friends: When purchasing my product, if any abnormal situation occurs: the product is not received, or does not match the description, or other reasons make you dissatisfied. Please do not leave neutral (or negative) feedback or open the case easily, please feel free to write to me. We will be happy to solve the problem for you. I believe that good communication can solve all problems. Wholesale sellers are warmly welcomed. If you order a hybrid model, please contact us in advance. We will give you more concessions and support! Thank you for your understanding and patience.