Ni-CAD 2400 mah vs NI-MH 3600 mah

[N3XO]

Guys, for driving PSG-1 with 300% spring which one is better :
1. 10.8 V Sanyo CP-2400 SCR (Ni-CAD 1.2 V - 2400 mah) or
2. 10.8 V Sanyo RC-3600 HV (Ni-MH 1.2 V - 3600 mah) :-?

[odp]

The RC-3600 HV should have lower internal resistance - get that one over the the nicad one.

However, if you're willing to spend the money, get Intellect Brothers Sub-C cells instead.

http://www.onlybatterypacks.com/show...temID=10221.21

Or if you need 4/5A size, Gold Peak is a good bet.

http://www.onlybatterypacks.com/show...temID=10215.21

[Greylocks]

http://www.airsoftcanada.com/showthread.php?t=14503

[PoFF]

Ni-MH are worth nothing in cold weather. I remember back then I didn't even get a single shot out of a fully charged 1800mAh 9.6V Ni-MH at -10 degrees C.

I'd get that Ni-CD over the Ni-MH

and... yeah, what Greylocks said... you didn't posted in the right section. Just be cautious, next time, mod's patience have ran out in the last few years.

[Mantelope]

Originally Posted by PoFF

Ni-MH are worth nothing in cold weather. I remember back then I didn't even get a single shot out of a fully charged 1800mAh 9.6V Ni-MH at -10 degrees C.

I'd get that Ni-CD over the Ni-MH

and... yeah, what Greylocks said... you didn't posted in the right section. Just be cautious, next time, mod's patience have ran out in the last few years.

This is old and incorrect thinking. NiMH technology has greatly improved in the past few years and personal experience with a range of NiMH batteries compared to NiCad batteries shows that NiMH is better in the cold. There is no reason to buy NiCad nowadays.

[mcguyver]

N3XO is in Indonesia. Not much cold weather there!!!!

[N3XO]

Odp, thanks for your info... And i've just compare it in sanyo batteries website. In here the annual weather is average is 27-34 Celcius, I guess it pretty warm for you guys

[PoFF]

Originally Posted by harleyb

This is old and incorrect thinking. NiMH technology has greatly improved in the past few years and personal experience with a range of NiMH batteries compared to NiCad batteries shows that NiMH is better in the cold. There is no reason to buy NiCad nowadays.

I think this info is still right and up to date. My last experience (real, direct experience) was with a 9.6V battery made of Sanyo "Twicell" Ni-MH cells, not too old of a technology if you ask me. The battery was properly and fully charged with an Apex peak detection charger, which in theory, should charge properly, isn't it? Well, niet, zero, nada, no shot, the voltage was simply not high enough to wind the spring.

If you look on Sanyo website, it's written in each cell description that a Cadnica Ni-Cd have a discharge operation range from -20 to 60 degrees, while a Twicell Ni-MH from 0 to 50 degrees, a 20 degrees difference

[N3XO]

How about Lithium Polymer battery ? My friend using Li-Po for 300% spring and he said okay....

[Mantelope]

Originally Posted by PoFF

I think this info is still right and up to date. My last experience (real, direct experience) was with a 9.6V battery made of Sanyo "Twicell" Ni-MH cells, not too old of a technology if you ask me. The battery was properly and fully charged with an Apex peak detection charger, which in theory, should charge properly, isn't it? Well, niet, zero, nada, no shot, the voltage was simply not high enough to wind the spring.

If you look on Sanyo website, it's written in each cell description that a Cadnica Ni-Cd have a discharge operation range from -20 to 60 degrees, while a Twicell Ni-MH from 0 to 50 degrees, a 20 degrees difference

My experience has been with Intellect and GP cells, which I've observed to be far superior to Sanyo cells. My 3700mAh GP NiMH battery was one of the ONLY batteries still going at the end of a game in around -15 degree weather. It showed no sign of performance degradation due to the weather, unlike some of the other NiCad batteries that were still working.

[PoFF]

Well thank you HarleyB for opening my eyes. If what yo say is true (which I have no doubt, since you've personnaly experienced them), I'll dump those sanyo cells and try those you suggest. I hope to have the same great results than yours...

... and I'll rephrase my first answer : ...Sanyo Twicell Ni-MH cells are worth nothing in cold weather...

[Mantelope]

I believe it...

Check out www.unipros.com, they have an excellent selection of high performance cells.