True R/C data

http://home.comcast.net/~truerc

resistance data is in milliohms

Name

Jim Oddino

Battery make

True RC 20C

Battery capacity

5000

Weight of pack ready to fly in 10S configuration

47oz

Number of cycles

 

Pack's internal resistance

 

Cell 1

3.1

Cell 2

2.8

Cell 3

3.7

Cell 4

2.8

Cell 5

2.9

Cell 6

2.6

Cell 7

2.9

Cell 8

2.5

Cell 9

2.6

Cell 10

2.8

General comments

Best pack yet at 100 cycles.  Still competition ready.  A little on the heavy side. 

IRs were closer to 2.0 at 90 cycles and only recently has there been a slight increase.

First flight 12/29/08.

 

 

 

 

 

Name

Jim Oddino

Battery make

True RC

Battery capacity

5000 – 10C

Weight of pack ready to fly in 10S configuration

41.7oz

Number of cycles

88

Pack's internal resistance

 

Cell 1

8.0

Cell 2

7.6

Cell 3

7.7

Cell 4

7.5

Cell 5

7.1

Cell 6

7.7

Cell 7

7.5

Cell 8

8.2

Cell 9

8.3

Cell 10

8.1

General comments

These IRs were measured during a charge when the pack was very cool.  I see numbers
in the 6.4 to 7.1 range when charging after a flight.  I wish I had numbers before
the "event" mentioned below.
 
This is my first True RC pack (long) that first flew on 2/2/08. It is still going
strong after 88 flights.  I treated it well but did have one poorly planned event
that may have taken some of the life out of it.  After a contest in June, I decided
to try another motor that I knew would draw more current but felt was well within
the short burst maximums.  Unfortunately it was a very hot day (107F) and the pack
got very hot.  After that it always gets a little squishy after each flight even
though it never gets real hot.  In spite of this I believe this pack is still
capable of performing under contest conditions and I'm sure it will work well over
100 flights.  I consider this a very good value as it will probably get at least 75%
as many "contest flights" as packs costing 3 times as much.

 

 

 

Name

Joe Lachowski

Battery make

True RC -10C (long)

Battery capacity

5000

Weight of pack ready to fly in 10S configuration

 

Number of cycles

0

Pack's internal resistance

 

Cell 1

5.2

Cell 2

4.3

Cell 3

5.7

Cell 4

4.9

Cell 5

5.4

Cell 6

5.2

Cell 7

5.0

Cell 8

5.4

Cell 9

5.4

Cell 10

5.3

General comments

New Pack- initial charge

 

Name

Jim Oddino

Battery make

True RC

Battery capacity

5000 15C

Weight of pack ready to fly in 10S configuration

45.5oz

Number of cycles

31

Pack's internal resistance

 

Cell 1

4.0

Cell 2

3.7

Cell 3

3.8

Cell 4

3.9

Cell 5

3.8

Cell 6

4.1

Cell 7

4.2

Cell 8

4.0

Cell 9

4.0

Cell 10

4.7

General comments

Best performing pack I have right now.  A little on the heavy side but the airplane
doesn't seem to care.

 

 

 

Name

Chris Moon

Battery make

True RC

Battery capacity

5000 - 15C

Weight of pack ready to fly in 10S configuration

45oz

Number of cycles

0

Pack's internal resistance

 

Cell 1

3.6

Cell 2

3.6

Cell 3

3.7

Cell 4

3.5

Cell 5

3.6

Cell 6

3.8

Cell 7

3.6

Cell 8

3.3

Cell 9

3.6

Cell 10

3.4

General comments

Brand new pack with zero cycles.  These values were on the initial charge

 

Name

Joe Lachowski

Battery make

True RC- 10C (short)

Battery capacity

5000

Weight of pack ready to fly in 10S configuration

 

Number of cycles

20/25

Pack's internal resistance

 

Cell 1

3.8/4.8

Cell 2

3.6/5.0

Cell 3

3.3/4.7

Cell 4

3.4/4.7

Cell 5

3.6/5.2

Cell 6

3.8/5.2

Cell 7

3.2/4.4

Cell 8

3.5/4.5

Cell 9

3.5/4.4

Cell 10

3.7/4.6

General comments

 

 

Name

Stuart Chale

Battery make

True RC

Battery capacity

5000

Weight of pack ready to fly in 10S configuration

 

Number of cycles

15

Pack's internal resistance

 

Cell 1

 

Cell 2

 

Cell 3

 

Cell 4

 

Cell 5

 

Cell 6

 

Cell 7

 

Cell 8

 

Cell 9

 

Cell 10

 

General comments

I have 2 True RC packs that each have 15 cycles. Also initially always used less than 4K Mah. One pack definitely down on power. Gets hot and uses over 4K for a masters pattern plus a maneuver or two.
Power down to 1990 - 2200 watts. Varies with time and stick cycling to max throttle. Still usable but obviously down on power. RPM down to 5450 or so. I doubt it will last too many more cycles.  Both packs sent back to True RC for evaluation

**UPDATE. Both packs being replaced by True RC**

 

Name

David Snow

Battery make

True R/C

Battery capacity

5000 -15C

Number of cycles

 

Pack's internal resistance

 

Cell 1

3.39

Cell 2

3.62

Cell 3

3.34

Cell 4

3.74

Cell 5

3.48

Cell 6

3.85

Cell 7

3.48

Cell 8

3.71

Cell 9

3.45

Cell 10

3.62

General comments

 

 

Name

Chris Moon

Battery make

True R/C  10C (long)#1

Battery capacity

5000

Number of cycles

61

Pack's internal resistance

unk

Cell 1

4.7

Cell 2

5.1

Cell 3

15.3

Cell 4

5.1

Cell 5

5.4

Cell 6

5.5

Cell 7

6.0

Cell 8

5.2

Cell 9

5.5

Cell 10

5.4

General comments

Cell 3 has high resistance but pack overall is still very strong

**updated** cell#3 failed (puffed) at 63 cycles

 

Name

Chris Moon

Battery make

True R/C- 10C (short)#3

Battery capacity

5000

Number of cycles

16

Pack's internal resistance

Unk

Cell 1

4.5

Cell 2

4.1

Cell 3

4.1

Cell 4

3.9

Cell 5

4.3

Cell 6

4.4

Cell 7

4.8

Cell 8

4.1

Cell 9

4.3

Cell 10

4.4

General comments

Pack is very strong and cool temps

 

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