Short answer: all four LP-E6 generations share the same casing and contacts and will fit the same bodies. What changes is capacity and discharge capability. The LP-E6 is 1800mAh, the LP-E6N raises that to about 1865mAh, the LP-E6NH jumps to 2130mAh with 3.0A continuous discharge, and the LP-E6P keeps 2130mAh but doubles continuous discharge to 6.0A. For everyday stills the E6NH is the best value; for an R5 Mark II or demanding video work, the E6P is effectively required.
Backward compatibility has to be read in both directions, and most people only remember half of it. A new pack in an old body generally works, minus some capability. An old pack in a new body powers up and shoots, but certain heavy-load functions are simply locked out. That second direction is where real-world problems concentrate.
The four generations side by side
| Model | Capacity | Energy | Continuous discharge | Introduced | Typical pairing |
|---|---|---|---|---|---|
| LP-E6 | 1800mAh | About 13Wh | Not separately rated | 2008, with the 5D Mark II | 5D II, 5D III, 60D, 7D |
| LP-E6N | About 1865mAh | About 14Wh | Not separately rated | 2014, with the 7D Mark II | 5D IV, 6D II, 80D, 90D |
| LP-E6NH | 2130mAh | About 16Wh | 3.0A | 2020, with the R5 / R6 | R5, R6, R6 II, R7, R |
| LP-E6P | 2130mAh | About 16Wh | 6.0A | 2024, with the R5 Mark II | R5 Mark II, R5 C, C50 |
The scale of each step is worth noting. From E6 to E6N is only 65mAh, which is imperceptible in use; from E6N to E6NH is roughly 14%, the largest step in the family and the one you actually feel. From E6NH to E6P the capacity does not move at all — the discharge rating doubles — so what you gain is not longer runtime but reliability under load.
Backward compatibility, both directions
A new pack in an old body
The E6NH and E6P both fit older bodies such as the 5D Mark III, 6D, 7D Mark II and 90D, supplying power and reporting charge normally. Those bodies cannot use 3.0A or 6.0A of headroom, so what you effectively get is a larger-capacity E6: longer runtime, nothing else changed.
The one thing to watch is the charger. The LC-E6E will charge the E6P, E6NH, E6N, E6 and LP-EL, taking about 180 minutes for an E6NH and about 150 for an E6N or E6. If you still have an original LC-E6 or an early LC-E6E, the E6NH may charge slowly, though safety is unaffected.
An old pack in a new body
This is where the limits appear. On an R5 Mark II, for example, an E6NH or earlier pack shoots stills and ordinary video perfectly well, but high-load functions such as HDMI RAW output, high-frame-rate video, pre-capture and simultaneous multi-body shooting are unavailable. That is not a fault; the body is trimming features to what the pack can support.
A related case is an R5, R6, R6 Mark II or R7 with an LP-E6P. Canon states that these bodies need firmware updated to support the LP-E6P before they reach the same burst rate as with an LP-E6NH. In other words, buy the new pack without updating and you may conclude nothing has improved.
Which generation to buy
- Older bodies such as the 5D II, 5D III, 6D, 7D and 60D: buy the E6NH. It costs little more than an E6N, holds more, and stays useful when you change bodies.
- R, R5, R6, R6 II, R7: buy the E6NH, which is the standard fit. An E6P works too, but update the firmware first.
- R5 Mark II, R5 C, EOS C50: buy the E6P. Other models limit functions, and there is no workaround.
- Stills only, tight budget: an E6N is still usable, with shorter runtime and the same discharge limits on newer bodies.
Mixing generations is not advisable. The four look almost identical, so they are hard to tell apart in a bag and easy to grab by mistake on a shoot. Standardise on either the E6NH or the E6P; it is the lowest-effort way to manage them.
What to watch with third-party packs
The spread in third-party quality is wider for the LP-E6 family than for the LP-E17, because the loads are heavier. A pack that claims 2130mAh but manages only 1.5A of continuous discharge will error out or shut down within minutes of 8K on an R5 — worse than a genuine E6N.
Three tests: whether a continuous discharge current is explicitly stated; whether the body shows a charge percentage and shutter count correctly; and whether the pack gets noticeably hot during continuous high-bitrate recording. Only when all three pass is it fair to call the pack usable. YO’s offering in this range is built to the 2130mAh specification, and the same checks are still worth running yourself.
For long fixed-position shoots, even a large pack has a ceiling, so consider external power. The thinking matches this FX3/FX30 video power setup: substitute a large supply for the internal pack and turn how many packs to bring into whether you have an outlet.
Owners of smaller bodies can skip this one — your packs are a separate system, covered in the LP-E17 section. If an LP-E6 you own has already swollen or drains abnormally, the handling procedure is in the LP-E6 fault section.
FAQ
Will an LP-E6P work in a 5D Mark IV?
Yes. The E6P is the same size with the same contacts, and the 5D Mark IV recognises and runs on it. The body cannot use 6.0A of discharge capability, so all you gain is the 2130mAh capacity — essentially the same experience as an E6NH.
Can the four generations share a charger?
An LC-E6E will charge any of the four and identifies the pack automatically. It is not advisable, however, to leave packs of different generations and different health in one two-bay charger for long sessions: heat dissipation differs between bays, and the weaker pack is more likely to overheat.
Why can’t an R5 shoot 8K on an E6N?
High-bitrate recording has a hard requirement for continuous discharge current, and the E6N cannot supply it, so the body limits or refuses that mode. It is not a firmware issue — fit an E6NH or E6P. The exact restrictions are shown on the camera display.
What should I do when the body says the battery cannot communicate?
Clean the contacts first: rub the pack terminals and the metal tabs in the bay with a pencil eraser, then refit. If the error persists, the decoder inside the pack has failed, which is common in third-party products and in originals that have seen water. Such a pack will still supply power but cannot report charge, so avoid relying on it for important work.