Drone battery spec chart
Capacity, watt-hours, carriage status, and the pack count that actually finishes a shoot.
Researched from published specifications and verified owner reviews · updated 2026
The short answer
Watt-hours, not milliamp-hours, is the number that matters for airline carriage: multiply nominal voltage by capacity in amp-hours. Most airlines allow lithium packs up to 100 Wh in the cabin freely, 100 to 160 Wh with approval, and prohibit larger. Two packs makes an aircraft usable, three changes how you fly, and four or more is the realistic floor for paid work. Extended packs typically add 40 to 60 g, which can cross the 250 g registration threshold.
Battery count is the highest-value upgrade in drone flying and it is not close. An aircraft with one pack is a demonstration. With two it is a hobby. With three you stop flying to the battery meter and start flying to the shot, which is the change that actually improves footage. This page is the reference data behind that, plus the numbers airlines and the FAA care about.
DJI
DJI 30W USB-C Two-Way Charging Hub
Sequential charging, acts as a power bank
Owning three packs and charging them one at a time from a single cable is barely better than owning one. A two-way charging hub sequences them from one supply and reverses to charge a phone from a pack, which is the accessory that most changes how a day in the field feels.
Prices move constantly. We earn a commission if you buy through these links, at no extra cost to you.
Common flight packs
| Pack | Fits | Approx price | Buy |
|---|---|---|---|
| DJI Mini 4 Pro Intelligent Flight Battery Plus DJI | Extended pack, Mini 3 and Mini 4 Pro | $104 | Price |
| DJI Air 3S Intelligent Flight Battery DJI | 45 min rated, Air 3 and Air 3S | $149 | Price |
| DJI Mavic 3 Intelligent Flight Battery DJI | Mavic 3 series, renewed listing | $97 | Price |
| DJI Avata 2 Intelligent Flight Battery DJI | Avata 2, roughly 23 min rated | $99 | Price |
| OVONIC 6S 1300 mAh 100C LiPo (XT60) OVONIC | 22.2V, 1300 mAh, 100C, XT60 | $31 | Price |
Prices are approximate and move. Renewed packs, where the manufacturer or a certified refurbisher has tested and re-certified a used unit, typically cost around a third less than new. They are a reasonable buy provided you check the cycle count on arrival and reject anything that will not balance-charge to full.
Working out watt-hours
Watt-hours is the number that matters for carriage and it is not printed on every listing. Multiply nominal voltage by capacity in amp-hours:
| Capacity | Nominal voltage | Watt-hours | Typical class |
|---|---|---|---|
| 2,400 mAh | 7.38 V (2S) | About 17.7 Wh | Sub-250 g folding aircraft |
| 3,850 mAh | 7.38 V (2S) | About 28.4 Wh | Extended Mini-class pack |
| 4,200 mAh | 14.76 V (4S) | About 62.0 Wh | Air-class aircraft |
| 5,000 mAh | 15.4 V (4S) | About 77.0 Wh | Flagship folding aircraft |
| 1,300 mAh | 22.2 V (6S) | About 28.9 Wh | 5 inch FPV freestyle pack |
| 1,500 mAh | 14.8 V (4S) | About 22.2 Wh | Cinewhoop pack |
Note how a 1,300 mAh FPV pack and a 2,400 mAh camera-drone pack land close together in watt-hours despite very different milliamp-hour figures. Voltage is doing the work, which is why comparing packs by milliamp-hours across different cell counts is meaningless.
Airline carriage
| Watt-hours | Typical carriage position | Notes |
|---|---|---|
| Up to 100 Wh | Cabin baggage, generally without prior approval | Covers essentially every consumer drone pack. |
| 100 to 160 Wh | Cabin baggage with airline approval, limited quantity | Usually a maximum of two spares per passenger. |
| Above 160 Wh | Generally prohibited as passenger baggage | Applies to some larger commercial aircraft packs. |
| Any capacity | Not in checked baggage | Terminals must be protected against short circuit. |
Practical advice for travelling: discharge packs to around half before flying, since most manufacturers and carriers prefer packs not stored at full charge, tape or cap the terminals, and carry them in a fire-resistant pouch such as a Zeee fireproof LiPo charging bags (2 pack) ($15) rather than loose in a bag. Rules vary by carrier and by country, so confirm with the airline rather than assuming. Country-by-country regulatory differences are on registration thresholds by country.
How many packs a session needs
| Session | Packs | Why |
|---|---|---|
| Learning to fly | 2 | One pack is a demonstration. Two is a session with time to repeat a mistake. |
| Serious hobby shooting | 3 | The third pack is what stops you flying to the meter instead of the shot. |
| Paid single-location shoot | 4 | Nobody is paying you to wait for a charger, and one pack may be unusable. |
| Mapping mission | 4 to 6 | Line-based flying means a pack change mid-grid, and re-flying lines is expensive. |
| FPV freestyle session | 6 or more | Flights are three to five minutes, so packs are consumables rather than assets. |
Beyond about four packs the constraint stops being capacity and becomes charging. Cool-down plus charge is over an hour per pack on most aircraft, so field charging only helps once a session runs past roughly three hours. Both halves of that arithmetic are on the battery count calculator and the charge time calculator, and the hardware is compared on best field charging power.
Weight, and the threshold problem
Extended packs are marketed on flight time and they carry a regulatory consequence. On several Mini-class aircraft the higher-capacity pack adds 40 to 60 g and is explicitly documented as taking the aircraft over 250 g. Fitting one is entirely legal; fitting one and continuing to fly unregistered for recreational purposes is not.
A DJI Mini 4 Pro Intelligent Flight Battery Plus ($104) is exactly this case. If the registration exemption matters to you, keep the standard pack and buy more of them rather than buying a bigger one. Run the numbers on the weight and registration calculator and see the weight classes chart.
Making packs last
Do not store at full charge. Intelligent flight packs self-discharge toward a storage level after a set period, and letting them do it rather than topping them up before a trip you then cancel is the single easiest way to extend their life.
Do not store empty either. A pack left deeply discharged for weeks can fall below the voltage at which it will safely recharge. Storage voltage is a middle state, not a low one, and the per-cell numbers are on the LiPo voltage chart.
Warm packs before flying in the cold. Cold reduces available capacity sharply and can trigger low-voltage protection early in a flight. The routine is on flying in cold weather.
Retire packs that have drifted. On loose LiPo packs a 1-8S LiPo cell checker with low-voltage alarm ($6) reads every cell individually, and a pack reading 3.71, 3.72, 3.70 and 3.55 is telling you it is finished. On intelligent packs, watch for swelling, refusal to reach full charge and sudden voltage sag under load.
Charge in a bag or a box. Not on the sofa, not unattended overnight. Fifteen dollars of fire-resistant containment is the least controversial purchase in the hobby, and the full routine is on LiPo battery care and storage.
Figures on this page come from published manufacturer specifications and published carriage guidance at the time of writing. Carriage rules vary by airline and by country, and none of this is legal advice. Confirm with your carrier before travelling.
Questions people ask
+ How do I work out the watt-hours of a drone battery?
Multiply the nominal voltage by the capacity in amp-hours. A 2,400 mAh pack at 7.38 V is 2.4 times 7.38, which is about 17.7 Wh. Manufacturers print the figure on the pack for exactly this reason, because airlines set their carriage limits in watt-hours rather than in milliamp-hours, and a large milliamp-hour number at low voltage can be a small watt-hour number.
+ Can I take drone batteries on a plane?
Lithium flight packs generally must travel in the cabin rather than in checked baggage, with terminals protected against short circuit. Most airlines allow packs up to 100 Wh freely, packs between 100 and 160 Wh with prior approval and in limited quantities, and prohibit anything above that. Check the specific airline as well as the general rule, because enforcement varies considerably.
+ How many batteries do I actually need?
Two is the minimum for an aircraft to be usable, three is where you stop flying to the meter and start flying to the shot, and four or more is what a paid job needs because a client is not paying you to wait for a charger. Beyond that, the constraint becomes charging rather than capacity, which is what the battery count calculator works out.
+ Why does an extended battery change my registration status?
Because registration is decided by takeoff weight with everything fitted, and extended packs on Mini-class aircraft typically add 40 to 60 g over the standard pack. On an aircraft that sits at 249 g as sold, that is enough to cross the 250 g threshold, at which point recreational flying requires registration and marking. The manufacturer usually documents this explicitly.
+ How long do drone batteries last?
Intelligent flight packs are commonly rated for a few hundred charge cycles before capacity falls meaningfully, but calendar age and storage state matter as much as cycle count. A pack stored at full charge for months degrades faster than one stored near its storage voltage, and cold flying accelerates apparent capacity loss even where it is temporary.
+ Are third-party drone batteries safe?
Intelligent flight packs contain a battery management system that communicates with the aircraft, and third-party versions of them vary enormously in quality. For flight packs, buying the manufacturer's own or a reputable renewed unit is the defensible choice. Loose LiPo packs for FPV builds are a different market where established brands are widely available and well understood.
