The advice is to charge the batteries the day before their use or the same day and store them after each flight at 3.80 V. Leaving a discharged battery, or worse charged, for a few weeks stresses its chemistry, compromising its duration. The battery MUST be 'stored' when not in use, which means that the Battery must always be kept 'half charged' when not in use (3.80 V and 3.85 Volt). they would be irreparably damaged (3V the cell discharges !! 4.2V / 4.35 for the LI-HV the cell is charged !! never go out of this range)Ģ - NEVER keep the batteries charged or discharged for too long (1-2 days). Never underestimate the danger of lipo batteries, even if it is small and seemingly harmless, but if it swells excessively it can catch fire at any moment and hurt you or worse (remember it burns very fast and at high temperatures, so it's a moment does damage).ġ - NEVER charge or discharge the batteries too much. if the battery is not faulty it is difficult for it to swell during a charge with a specific charger. I have been using the DJI external charger for years and I have never had problems with swelling. Is there a way to check if the battery is fully charged? I started the application of the drone in my phone and it shows a empty red battery. I waited 2 and a half hour, although the manual says it should be done in 1 1/2 hour, but I tried to turn the drone on, but didn´t work. Then I read the manual again and it recommended that the charger should be 5V 2 amperes or more. I read the manual and it says that it has a safety feature that the drone doesn´t allow to over charge it, But then why it got swollen the first battery. I plug it with the computer and never got charged, then I plug it with a charger of 5 V 1 ampere and it didn´t got charged. In the DJI store here in Cancun, recomended me to charge it with the computer and buy a new battery. I tried it and it worked fine, but then the 4th time I tried to use it, I charged it with a fast charger and my battery got swollen. In some cases, the nature of the item means that it is non-returnable, for example, due to hygiene/health and personal care/wellness/consumable nature of the product.I have a drone tello. Office Products and Wireless Returns Policy New electronic items fulfilled by Amazon AU can be returned for change of mind, for a replacement or a full refund of the purchase cost of the item within 30 days of receipt of delivery.For information about returning faulty electronics please see Returning Faulty Items.

Please see our Amazon Global Store Returns policy and Refunds policy for more information about returning Amazon Global Store items.Ĭamera, Electronics and PC Returns Policy Please see About Marketplace Returns & Refunds for details on Seller returns policies. To return faulty items see our Returning Faulty Items policy.įor items ordered on from a seller that fulfils and ships its own inventory (also called a third party seller), any returns will be in accordance with the returns policy set by that seller (not the Amazon AU returns policies). This change of mind return policy is in addition to, and does not affect your rights under the Australian Consumer Law including any rights you may have in respect of faulty items. Unless otherwise stated, original shipping fees for change of mind returns are not refunded.

Please Contact Us and see About Items That Can’t Be Returned. In some circumstances, these items may be eligible for a refund or a replacement (for example, if you receive the wrong item due to an Amazon AU error or if the item is faulty). In some cases, the nature of the item means that it is non-returnable, for example, due to hygiene/health and personal care/wellness/consumable nature of the product. You can return most new, unopened items fulfilled by Amazon AU within 30 days of receipt of delivery for a replacement or full refund of the price you paid for the item if you change your mind - see About Replacements and About Refunds.

Dji tello battery