To prevent any confusion with the eGo-type "batteries", I use the term "cell" here to refer to a single 18350, 18650, 26650, LiPo pouch, etc.
While the test results are hard data, the conclusions and recommendations I make based on these tests are only my personal opinion based on my criteria for setting a rating. Carefully research any cell you are considering using before purchasing.
Testing cells or packs at their limits is dangerous and should never, ever, be attempted by anyone who has not thoroughly studied the dangers involved and how to minimize them.
If the cell or pack has only one current rating number on it, or if it says "max", then I have to assume that the company is stating that the cell can be discharged at that current level in any way, including continuously.
Bottom Line
This Turnigy Graphene is a great performing, low internal resistance pack but it is overrated.
vaping at its 117A (65C) rating, which I am presuming is a useless "pulse" rating and not a continuous current rating, would quickly bring the pack voltage down to about 10V and quickly heat the pack up past Turnigy's max temperature rating unless vaping slowly. This cannot even be considered a 65C (117A) pulse-rated pack unless the pulses are short and far between and you don't mind the huge voltage sag at 117A.
This is a great performing pack though, easily beating out packs with higher internal resistances which causes greater voltage sag and higher temperatures.
But, as is always the case, there are tradeoffs for this better performance. This Turnigy Graphene pack is thicker than many other poorer performing packs, 27mm versus about 21mm. It is also heavier, 188gms versus the 145-160gms of other packs. But if this pack's larger size and greater weight isn't a problem then it's a great choice for higher current applications.
CAUTION: LiPo's use the most volatile of the Li-Ion battery chemistries and can cause extreme injury if abused. Never use a LiPo unless the cells, wraps, wiring, and connector are in perfect condition. Never exceed the CDR of the LiPo unless you understand and accept the risks involved. You are responsible for your own safety, be careful!
My Ratings
Capacity = 1800mAh
Continuous Discharge Rating (CDR) = 50A (28C)
Average Pack IR = 13.65mOhms
Average Cell IR = 3.1mOhms
Dimensions/Weight = 106 x 35 x 27mm / 188gms
IR = Internal Resistance
mOhms = milliohms
Continuous-Current Test Results
Pulse-Current Test Results
Comments
CDR = Continuous Discharge Rating. The nearest 5A-multiple of constant-current continuous discharge current that brings the inner cell of a 3S pack to a temperature of 60°C. This is what the LiPo assemblers recommend as the max running temperature so it makes sense to use it as the rating. Especially since the inner cell will be hotter internally than this temperature, perhaps considerably.
Links
LiPo ratings table: LiPo Pack Safety Grades and Performance Table | E-Cigarette Forum
To see how other packs and cells have tested and how hard you can safely push them, check out these links: List of Battery Tests | E-Cigarette Forum
While the test results are hard data, the conclusions and recommendations I make based on these tests are only my personal opinion based on my criteria for setting a rating. Carefully research any cell you are considering using before purchasing.
Testing cells or packs at their limits is dangerous and should never, ever, be attempted by anyone who has not thoroughly studied the dangers involved and how to minimize them.
If the cell or pack has only one current rating number on it, or if it says "max", then I have to assume that the company is stating that the cell can be discharged at that current level in any way, including continuously.
Bottom Line
This Turnigy Graphene is a great performing, low internal resistance pack but it is overrated.
vaping at its 117A (65C) rating, which I am presuming is a useless "pulse" rating and not a continuous current rating, would quickly bring the pack voltage down to about 10V and quickly heat the pack up past Turnigy's max temperature rating unless vaping slowly. This cannot even be considered a 65C (117A) pulse-rated pack unless the pulses are short and far between and you don't mind the huge voltage sag at 117A.
This is a great performing pack though, easily beating out packs with higher internal resistances which causes greater voltage sag and higher temperatures.
But, as is always the case, there are tradeoffs for this better performance. This Turnigy Graphene pack is thicker than many other poorer performing packs, 27mm versus about 21mm. It is also heavier, 188gms versus the 145-160gms of other packs. But if this pack's larger size and greater weight isn't a problem then it's a great choice for higher current applications.
CAUTION: LiPo's use the most volatile of the Li-Ion battery chemistries and can cause extreme injury if abused. Never use a LiPo unless the cells, wraps, wiring, and connector are in perfect condition. Never exceed the CDR of the LiPo unless you understand and accept the risks involved. You are responsible for your own safety, be careful!
My Ratings
Capacity = 1800mAh
Continuous Discharge Rating (CDR) = 50A (28C)
Average Pack IR = 13.65mOhms
Average Cell IR = 3.1mOhms
Dimensions/Weight = 106 x 35 x 27mm / 188gms
IR = Internal Resistance
mOhms = milliohms
Continuous-Current Test Results
Pulse-Current Test Results
Comments
CDR = Continuous Discharge Rating. The nearest 5A-multiple of constant-current continuous discharge current that brings the inner cell of a 3S pack to a temperature of 60°C. This is what the LiPo assemblers recommend as the max running temperature so it makes sense to use it as the rating. Especially since the inner cell will be hotter internally than this temperature, perhaps considerably.
Links
LiPo ratings table: LiPo Pack Safety Grades and Performance Table | E-Cigarette Forum
To see how other packs and cells have tested and how hard you can safely push them, check out these links: List of Battery Tests | E-Cigarette Forum
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