Dinogy MEGA Graphene 2.0 4S 1350 mAh 75 C - Front View

Battery review: Dinogy MEGA Graphene 2.0 4S 1350 mAh 75 C

Publiziert von Nils Waldmann

am

I am proud to present you my battery review of the all new Dinogy MEGA Graphene 2.0 series. The new MEGA product line tries to pair the great power delivery of the ULTRA series pack with a highly competitive pricing. This review looks at the 1350 mAh version of the MEGA Graphene 2.0 battery.

How to use charts:

 

Attention

This battery review contains some charts which can be interactively utilized. You are able to:

  1. Highlight any value just by clicking on the corresponding key below the chart.
  2. Hover over any value / line inside the chart to get precise readings.
  3. Right axis is always current.

Have fun! :)

Appearance

The all new Dinogy* MEGA family is rated up to 75 C and therefore can be classified below the current ULTRA Graphene 2.0 line up (80 C) performance wise. The outer appereance of the pack only changed with regards to colors used. Instead of the bright orange on the ULTRA series, the MEGA batteries come in an all red styling, which is made of the honey comb-style material we have seen on the front and back of the ULTRA series*. Top and bottom show the four black lithium polymer cells inside as L&E uses transparent shrink wrapping on the new product.  Beside the 1350 mAh there also is a 1550 mAh version available, which I will have a look at some when in the near future.

Dinogy MEGA Graphene 2.0 4S 1350 mAh 75 C - Pack
Dinogy MEGA Graphene 2.0 4S 1350 mAh 75 C - Box

Technical Design

The Dinogy* MEGA Graphene 2.0 75 C pack is a standard 4S1P config flight pack for high power use. It utilizes the new generation graphene cell chemistry. An extra layer of carbon particles is added to minimize internal resistance and hence maximize possible current draw. The newest version now is rated up to 75 C constant. We will rate the performance later.

Build Quality: Very good. Pack feels very well made on the outside. Connection terminal looks solid. The bright redhoney-comb materials feels like it offer good protection on the sides. The new transparent shrin wrap is nice to look at. The golden sticker at the bottom adds to the overall quality feel of the product.

Plugs: The Dinogy pack comes with standard XT60 connectors* equipped – again in black color.

Cables: L&E uses 12 AWG wires on this packs. The high flexible silicon layer is rated up to 200°C. Cable length is about 7.0 centimeters.

Balacing plugs: Standard XT-system*. Balance wires are rather short (2.5 cm) which is a benefit in terms of getting them out of the prop-range on the aircraft. Main power line and balancer wires are connected at the top of the pack.

Technical Details

ManufacturerL&E Battery Industrial*
TypeDinogy MEGA Graphene 2.0 75C
Cell chemistryLithium Polymere (LiPo)
Cell typeDinogy Graphene enabled chemistry
Cell count4
Pack configuration4S1P
Capacity1350 mAh
Max. Charge Current 10.8 A (8 C)
 Max. Discharge Current
Continuous
Burst
101.25 A
? A
Weight
w/o plugs
with plugs

ca. 158 grams
Measurements
as listed
measured
35 x 34 x 70 mm
34.3 x 34.6 x 70 mm
PriceUS-$ 28
NoteThis battery has been directly donated by the manufacturer / distributor for review purposes.
Dinogy MEGA Graphene 2.0 4S 1350 mAh 75 C - Front View
Dinogy MEGA Graphene 2.0 4S 1350 mAh 75 C - Back View
Dinogy MEGA Graphene 2.0 4S 1350 mAh 75 C - Connection Terminal
Dinogy MEGA Graphene 2.0 4S 1350 mAh 75 C - Top View
Dinogy MEGA Graphene 2.0 4S 1350 mAh 75 C - Bottom View

Break-in documentation

The battery followed the standard break-in-process: The pack is charged at a rate of 1C until CV-phase ends with current of 1/10C. The break-in phase consists of four charging cycles at 1C and four corresponding discharges at 1 C / 4C / 10C and 20 C.

Anomalies: No anomalies during break-in.

Internal resistance measurements during break-in phase

CycleCell 1Cell 2Cell 3Cell 4Total
After first charge1.41.51.01.45.3
After second charge1.80.71.31.75.5
After third charge1.71.60.61.45.3
After fourth charge1.41.80.91.65.6

Charging process

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden


CV-Phase is short on this cell type. Balancing in normal mode took 1:46 min. Cell drift during charge was unobtrusive. This is for 1C charge (1.4 A).

Load Testing

The main part of this battery test will consists of different load test settings showing the battery performance. Constant load testing is used to judge the advertised C-ratings as well as look at cell drift under high loads. We also check on internal resistance once more. Next up is the dynamic current test, which simulates a „real“ flight with changing (=dynamic) loads. For test methodology please check the dedicated methodology page!

Constant Load Testing

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Constant load testing follows a certain load pattern of different constant currents. Base load is 10 C. Current pulses at 50 C, 35 C, 20 C and 30 C are maintained for time intervals between 10 and 20 seconds. For more details please refer to the test methodology page.

Capacity Usage

During this test the pack delivered 984 mAh. This is 72,8 % of nominal capacity. A very good result.

Average cell voltages

The following table lists the average voltages per cell, of the total pack, as well as the averaged value per cell as fraction of total voltage during phase of active load.

 Cell 1Cell 2Cell 3Cell 4TotalAverage per cell
Avg. Voltages3.764 V3.761 V3.769 V3.767 V15.061 V3.765 V

Just looking at average values the Dinogy pack performs good. All cells stayed well above 3,7 V on average. An average value above 3,74 V / cell can be considered very good.

Focus Voltages

Exceptionally interesting when testing a battery under a constant load for a longer period of time: the lowest voltage per cell just before load impulse is disabled. On top, you should have look at voltage recovery rate, that is: how fast do cell voltages rise again once load impulse is cut.

PhaseCell 1Cell 2Cell 3Cell 4Total
End of 50 C3.630 V3.630 V3.653 V3.668 V14.58 V
End of 35 C3.574 V3.573 V3.586 V3.586 V14.325 V
End of 20 C3.244 V3.257 V3.314 V3,359 V13.174 V
End of 30 C –

Voltage sag is very low on the Dinogy MEGA 1350 mAh pack. No cell went below 3,5 V/cell benchmark on first two load cycles. Great result!

Average voltage recovery per second

Those values are specific to the test setting and not valid for the pack in general! Still they allow an estimated guess about how fast voltages rise again after current spikes.

 Cell 1Cell 2Cell 3Cell 4Total
Avg. Recovery0.0285 V / s0.0280 V / s0.0255 / s0.0230 V / s0.1051 V /s

Voltage recovery is quick for the new MEGA Graphene 2.0 1350 mAh 75 C battery.

IR-Measurement

IR measurement is conducted using the four current pulses. Resistance for each cell is calculated in all four discharge phases. Shown values are averaged to cancel out different temperature points due to different discharge states during measurements.

Cell1234Total
Resistance [mΩ]2.422.412.132.339.29

Interpretation: The internal resistance of 2.32 mΩ average per cell indicates a „true“ C-rating of around  44 C (59.1 A). This is on the conservative side and represents a current draw that will make the pack last for a long time. Overall performance can be described as very high!

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Cell drift under load

Discharge Phase50 C35 C20 C30 C
Max Cell drift (V)0.013 V0.021 V0.155 V

Cell drift is low on the new Dinogy MEGA Graphene 2.0 75 C packs during main discharge phase. Cells are matched well. I expect even better matching once batch production is up and running, as more cells for perfect matching will be available in the factory.

Key Temperature Facts

Temperature Development - Dinogy MEGA Graphene 2.0 4S 1350 mAh 75C
Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Temperature Development

Max. temp during discharge was around 50.2 °C on top of pack. Note that heating of stressed LiPo packs will continue for some more time even when load is cut.
Market Comparison

The following chart shows all reviewed LiPos in the same product segment for direct comparison of performance. Higher values under load are better.

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Constant 25 C Discharge

Pretty much a standard benchmark in the LiPo industry.

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Cut-Off /warning value for this battery should be chosen 3.5 V minimum. After this point voltage drops quick. The battery provided 920 mAh (68,1 %) during the 25 C discharge.

Market Overview

Comparison of different reviewed 1300 mAh batteries under 25 C load.

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Dynamic Load Testing

The dynamic load testing setting consists of two separate discharge scenarios that have been developed of two different real-life FPV flights. Pattern one represents a high speed low proximity flight around the open field with some hovering to the end. Average load is around 22 A. Second pattern is a free-style flight around trees in the park with some current spikes near 70 A. Average load on this flight is around 13 A due to longer floating periods.

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Capacity Usage

During the test of pattern 1 the pack delivered 1018 mAh. This is 75.1 % of nominal capacity. Very good. In patter 2 testing 986 mAh (73.0 %) could be used until first cell reached cut-off voltage.

Market Comparison

The following charts give an overview of all tested packs in the 1300 mAh class so far.

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

The last chart of this review sums up the usable capacity during all four load scenarios. Please note that this is only the capacity consumed by the electronic load! There are losses due to heating of the pack, which could be approximated (see testing methodology page). All four tests are cut when any cell goes below cut-off voltage of 3,3 V (or pack goes above 58 °C on any of the three probes). If you would push further and go down to 3,0 V/cell you will be able to squeeze out some mAh more, but at the cost of excessive heat generation and shortening of pack life-span. This value will most likely differ from what you get when flying on a quad as most people don’t monitor voltage on a per cell basis and therefore don’t even notice if voltage drops below 3,3 V/cell during punsh-outs (what’s not necessarily a good thing, though). For comparison, used capacity until 3,3 V/cell is reached is the base line in all battery reviews on Drone-Zone.de.

Google Docs

Mit dem Laden des Diagramms akzeptieren Sie die Datenschutzerklärung von Google.
Mehr erfahren

Diagramm laden

Conclusion

The new generation of 75 C MEGA Graphene packs are an interesting piece of tech. I like to see the weight drop by almost 20 g compared to the current ULTRA Graphene 2.0 80 C 1300 mAh* battery. Luckily Dinogy managed to keep the excellent built quality, we all got used to. I still think it is fair to say that Dinogy lipos are one of the best manufactured battery brand a the moment. No wonder you won’t see any puffing or deformation of the battery even under high loads. Heat is spread evenly across the pack and the shape is kept at all times. The cell matching is not as good as on the current ULTRA products, but I guess this will improve once production runs at full scale – in comparison to other products the matching is still good, though. Nothing to worry about here. I would rate this pack at true 44 C, which is really good and amounts to 59 A continuous load capabilities. Cut-off should be chosen at 3,5 V / cell minimum. The sticker on the pack tells you 3,4 V/ cell but this would mean to cut of throttle immediately after you hear your telemetry or buzzer complaining. As expected usable pack capacity comes in behind the current ULTRA series*, but is still decent.  The best is yet to be announced: Pricing for the 1350 mAh Dinogy* MEGA 4S 75 C pack starts at US-$ 28. Therefore the MEGA series is a great choice for training and free style flying at a reasonable price! For that kind of money Dinogy once more has to offer an excellent performance-to-price ratio in the high quality- high performance lipo market.

Other packs of this line up tested:

Bleibt in Kontakt!

Wenn ihr über die neuesten Drohnen-News, Drohnen-Leaks, Drohnen-Gerüchte, Drohnen-Guides und Drohnen-Testberichte auf dem Laufenden bleiben möchtet, dann folgt uns gerne auf unseren Social-Media-Kanälen!

Außerdem freuen wir uns natürlich über eure Nachrichten oder Fragen in den Kommentaren!


Hinweis: Mit Sternchen (*) markierte Links sind Affiliate-Links / Partnerlinks. Mit einem Kauf über diesen Link erhalten wir als Seitenbetreiber eine Verkaufsprovision. So kannst du Drone-Zone.de ganz einfach unterstützen. Bitte beachtet, dass es sich bei Drone-Zone um eine reine Website zur Information und keinen Online-Shop handelt. Ihr könnt über unsere Seite keine Kaufverträge über die dargestellten Artikel abschließen und auch keine persönliche Beratung hierzu in Anspruch nehmen. Mehr Informationen dazu findest du hier.

Avatar-Foto

Nils Waldmann

Hi, ich bin Nils! Ich bin leidenschaftlicher Modellbauer, Hobby-Fotograf, Akku-Liebhaber und RC-Pilot. Ich berichte hier über die neusten Entwicklungen in der Drohnen-Branche und kümmere mich um detaillierte Anleitungen, Guides und Testberichte.

Schon gesehen?

VCANZ 4S 1350 mAh 95 C - Front View

Battery review: VCANZ 4S 1350 mAh 95 C

Chinese battery manufacturing brand VCANZ Power contacted me to see if I would review their latest FPV flight packs. Of course, I couldn’t resist taking that offer and here we ... jetzt lesen!

Dinogy Platinum Graphene 2.0 4S 1300 mAh 130 C V2.0 - Front

Battery review: Dinogy Platinum Graphene 2.0 4S 1300 mAh 130 C V2.0

Once again we are happy to present you our in-depth review of the all new Dinogy Platinum Graphene 2.0 4S 1300 mAh 130 C V2.0 high performance battery. Get excited ... jetzt lesen!

SLS NOC 4S 1550 mAh 2N - Front

Battery review: SLS NOC Race 4S 1550 mAh 2N

We are proud to finally present you our review of the new SLS NOC Race FPV LiPo batteries. Stefans Lipo Shop has offered the cells for quite some time now. ... jetzt lesen!

Dinogy Platinum Graphene 2.0 4S 1600 mAh 130 C V2.0 - Front

Battery review: Dinogy Platinum Graphene 2.0 4S 1600 mAh 130 C (V2.0)

Once again we are happy to present you our in-depth review of the all new Dinogy Platinum Graphene 2.0 4S 1600 mAh 130 C V2.0 high performance battery. Get excited ... jetzt lesen!

Schreibe einen Kommentar