Short answer: one LP-E6NH recording continuous 4K on an EOS R5 or R6 usually lasts somewhere around 60-90 minutes; but in most real shoots the body’s heat warning arrives before the pack runs flat, so what decides how long you can record is not how many batteries you carry, it is how you pace cooldowns. In other words, the goal of a battery plan is not “cover the whole day” but “always have a full pack ready to drop in the moment the camera has cooled enough to resume.”
Below we break down where the power goes, the realistic duration ranges, the overheating mechanism, and a battery plan you can follow directly.
Where an R5 or R6 spends its power
The power profile of these two bodies is nothing like a DSLR. The pack is not drained by the shutter; it is drained by systems that run continuously.
- Sensor and processor always on: a mirrorless camera has no optical finder, so it works from the moment it is switched on and draws current even at idle.
- In-body stabilization: IBIS consumes a steady amount of power over long periods, and it is especially visible with handheld video.
- Screen and viewfinder: a bright screen and a high-refresh EVF are commonly underestimated drains.
- Encoding and writing: high bitrate, high frame rate, Log or RAW raises processor load and card-write power significantly.
- Wireless and networking: keeping Wi-Fi or Bluetooth connected, or transferring while shooting, pulls current continuously.
That explains why the same LP-E6NH manages several hundred to a thousand-plus stills but only a bit over an hour of video — the power density is completely different.
How long it really lasts, by scenario
Canon’s figures are references under standard conditions; real shoots discount them by how you work. For common setups, these ranges are a reasonable guide:
| Shooting scenario | Approximate duration per LP-E6NH | Main factors |
|---|---|---|
| 1080p or low-bitrate 4K, room temperature, stabilization off, screen only | About 80-100 minutes | Bitrate, screen brightness |
| High-bitrate 4K, handheld with stabilization, room temperature | About 60-80 minutes | Stabilization, encoding load, temperature |
| 4K high frame rate or Log, outdoors in summer | About 45-70 minutes, often cut short by heat | Cooling, frame rate, ambient temperature |
| Interval shooting or timelapse, long uptime | Depends on total uptime, not shutter count | Idle draw, screen-on time |
These numbers are order-of-magnitude references, not promises. The same camera behaves differently at different room temperatures, firmware versions and card speeds, so your own body is the authority.
Why overheating always arrives before an empty pack
The R5 and R6 have to fit a full-frame sensor, five-axis stabilization and a cooling structure into one body, and during long high-bitrate takes heat accumulates faster than the pack drains. The sequence is familiar: a yellow temperature warning, then a shortened recording limit, then a forced stop.
Two consequences follow. First, carrying more batteries does not extend a single continuous take — it only extends the total you can record in a day. Second, how efficiently you cool the camera determines your actual output: putting it in shade with airflow, flipping out the screen, and keeping it out of direct sun adds more footage to the day than another battery does.
If you mainly shoot interviews or event coverage that needs long takes, consider holding each take to 20-30 minutes and covering with a second angle or in segments instead of running one continuous take. Segmentation also eases momentary load on the card and the pack.
A battery plan — rotating three packs
By a day’s shooting volume, two packs cover a light half day, and full-day event coverage is better served by three or more. The rotation can be as simple as this:
- Charge everything before you leave and number the packs 1/2/3. Numbers remove the “was this one full?” hesitation at the moment you swap.
- Keep one in the body and store the rest in the shade. In summer, do not leave them in the car or in a bag in direct sun; heat accelerates aging and worsens discharge behavior.
- Swap at about 20-30%, not at shutdown. The voltage sag at the end of a low pack undermines high-bitrate recording, and swapping early is safer than losing power mid-take.
- Do not charge a hot pack immediately. Waiting until it is near room temperature noticeably extends cycle life.
- Use a dock charger as your main top-up method. The body’s USB-C charging is for emergencies, and charging while recording adds heat.
For charger selection, see the dock comparisons in the LP-E6NH category; if there is a Sony body in your kit, the cross-system thinking in the notes on Sony FZ100 packs is useful, since the way capacity falls in the cold works the same way.
When to consider the LP-E6P instead
If you shoot an EOS R5 Mark II rather than an R5 or R6, the picture changes: that body asks for more sustained current, and while an LP-E6NH fits and works, some high-bitrate and high-speed burst modes may be limited. That is covered separately in the LP-E6P category — R5 and R6 owners do not need to switch packs over it.
As for third-party alternatives, brands such as YO typically land well below Canon pricing at the same LP-E6NH specification, which suits a third or fourth backup slot; keep Canon in the primary slot, especially for shoots in the cold or under long heavy load. Be aware that LP-E6+ is not a Canon designation — it is how some third parties (YO included) label an enhanced version, so its real capacity and discharge behavior vary by maker.
FAQ
One LP-E6NH gives me only about 40 minutes of 4K — is the pack faulty?
Check the conditions first: stabilization on, high bitrate or Log, a warm room, brightness at maximum. When all of these stack into the most demanding combination, 40-60 minutes is within normal range. Only if it is clearly shorter than a new pack under identical settings should you suspect degradation.
Can I record while charging from a power bank?
The R5 and R6 accept USB-C PD input, which can reduce internal drain during long recordings or interval work. But whether charging while recording works reliably, and how much power it needs, depends on the body model, firmware and charger protocol — check the body manual. Charging during heavy recording also adds heat, which can trigger the temperature limit sooner.
Are two packs enough for a full day of event coverage?
For light shooting, yes; for a full day of intensive video, no. As a rule of thumb, plan one pack per hour of continuous recording and keep one spare. If the budget is tight, buying one more third-party pack is better than propping things up with repeated in-body charging.
How should I store packs that go unused for a long time?
Store them at about half charge in a cool, dry place and top them up every few months. Long storage at full charge or at zero both accelerate capacity loss.