Capolini
Banned
This is a simple test. To me it is practical, informative and useful.
People like HKJ are valuable to me for ALL the testing he does. One thing he can not do because it would be way too time consuming, is to test a battery continuously for its entire life time to see how fast or how slow it may degrade.
Finding out which battery has the most capacity and least amount of voltage curve is very helpful in helping me determine which battery to get.However, it is impossible to know its longevity and rate of degradation until we use them and record their on going history.
I have the time to do that and am a fanatic for doing and keeping track of Voltage checks, battery cycles,capacity tests and purchase dates.
Here are the stats for the batteries:
The discharge rates are ALL @ 1Amp,HKJ and Mine.
VTC5-2600mAh/HKJ-2575
Purchased:6.17.2015
Cycles:170
Used in: SDMinivn- 2X/Week
LGHG2-3000mAh-HKJ-2804
Purchased:1.5.2016
Cycles:105
Used in:TX25C2vn-2X/Week
I just did these tests over night and this morning. I put the batteries in slots 1 and 4. Then I switched the batteries so both can be compared in their respective slots.
As you can see the VTC5 tested similar in both slots and averaged a capacity of 2456mAh. Pretty impressive after 27 months old and 170 cycles.
On the other hand[for whatever reason] the LGHG2 had a difference of 207mAh from slot 1 to slot 4.The average is 2469mAh which is far below its rated capacity.
The LGHG2's numbers do NOT surprise me because it is noticeable in my voltages when I get home and the fact that the light is not as hot as it use to be after 10 minutes of use!!!
The bottom line is that a battery[LGHG2] that is 7 months younger with 65 LESS cycles, has lost a considerable amount more capacity than the VTC5, which is rated at 2600mAh compared to the LGHG2 which is rated at 3000mAh.
Being that the batteries were in the same slots gives a pretty good idea of their capacity regardless of how accurate the OPUS may or may not be. I have found that my Opus averages about 3% high.
I only had one other LGHG2 cell before this. I recycled it after about 16 months. this was Before I had my Opus. However, it was easy to tell that it was losing capacity. My run times and voltages easily determined that.
Your experiences may be different.This is just my experience with 2 X LGHG2. From that experience I would never buy them again. I will stick to 30Q and VTC5/VTC6!:thumbsup:
It is also important to note that both these batteries have been used in the same chargers, my Fenix-ARE-C2 and my KP L2.
Something else I have noticed, regardless of which charger I use.They are having problems terminating the voltage. I just pulled it off the charger after not terminating for about 30 minutes when it was @ 4.18v. It was VERY HOT!! I think I may recycle this one! W/ a brand new 30Q for only $5 and a 1.5 mile ride to Liionwholesale,,,it would certainly be worth it
People like HKJ are valuable to me for ALL the testing he does. One thing he can not do because it would be way too time consuming, is to test a battery continuously for its entire life time to see how fast or how slow it may degrade.
Finding out which battery has the most capacity and least amount of voltage curve is very helpful in helping me determine which battery to get.However, it is impossible to know its longevity and rate of degradation until we use them and record their on going history.
I have the time to do that and am a fanatic for doing and keeping track of Voltage checks, battery cycles,capacity tests and purchase dates.
Here are the stats for the batteries:
The discharge rates are ALL @ 1Amp,HKJ and Mine.
VTC5-2600mAh/HKJ-2575
Purchased:6.17.2015
Cycles:170
Used in: SDMinivn- 2X/Week
LGHG2-3000mAh-HKJ-2804
Purchased:1.5.2016
Cycles:105
Used in:TX25C2vn-2X/Week
I just did these tests over night and this morning. I put the batteries in slots 1 and 4. Then I switched the batteries so both can be compared in their respective slots.
As you can see the VTC5 tested similar in both slots and averaged a capacity of 2456mAh. Pretty impressive after 27 months old and 170 cycles.
On the other hand[for whatever reason] the LGHG2 had a difference of 207mAh from slot 1 to slot 4.The average is 2469mAh which is far below its rated capacity.
The LGHG2's numbers do NOT surprise me because it is noticeable in my voltages when I get home and the fact that the light is not as hot as it use to be after 10 minutes of use!!!
The bottom line is that a battery[LGHG2] that is 7 months younger with 65 LESS cycles, has lost a considerable amount more capacity than the VTC5, which is rated at 2600mAh compared to the LGHG2 which is rated at 3000mAh.
Being that the batteries were in the same slots gives a pretty good idea of their capacity regardless of how accurate the OPUS may or may not be. I have found that my Opus averages about 3% high.
I only had one other LGHG2 cell before this. I recycled it after about 16 months. this was Before I had my Opus. However, it was easy to tell that it was losing capacity. My run times and voltages easily determined that.
Your experiences may be different.This is just my experience with 2 X LGHG2. From that experience I would never buy them again. I will stick to 30Q and VTC5/VTC6!:thumbsup:
It is also important to note that both these batteries have been used in the same chargers, my Fenix-ARE-C2 and my KP L2.
Something else I have noticed, regardless of which charger I use.They are having problems terminating the voltage. I just pulled it off the charger after not terminating for about 30 minutes when it was @ 4.18v. It was VERY HOT!! I think I may recycle this one! W/ a brand new 30Q for only $5 and a 1.5 mile ride to Liionwholesale,,,it would certainly be worth it