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Niels Doorduijn · 25th September 2006, 07:15

Quote: (Originally Posted by koputai)

Try the maths again Steve.
8 x 1.5v = 12v. Yes, eight cells gives 12v.
But, the 15/15.5 requires +/-12v, which is 24v all up, so requires 16 cells.
The standard 15/15.5 battery consists of 18 cells, giving +/- 13.5 volts for a total of 27 volts. No matter how you wire up eight cells, you're never going to run a 15/15.5 on them.

Jason.

Jason,

Would it not work this way:

2 * (1 * 9V + 3 * 1,5V = 13,5) = 27V ?

I.e. use four batteries for each side?

Niels

25th September 2006, 07:15	#12 (permalink)
Niels Doorduijn New Member Current Rebreather/s: Inspiration Classic MK 15.X Other Rebreather/s: Join Date: Nov 2005 Location: Holland Posts: 18	Re: MK 15.5 battery Quote: (Originally Posted by koputai) Try the maths again Steve. 8 x 1.5v = 12v. Yes, eight cells gives 12v. But, the 15/15.5 requires +/-12v, which is 24v all up, so requires 16 cells. The standard 15/15.5 battery consists of 18 cells, giving +/- 13.5 volts for a total of 27 volts. No matter how you wire up eight cells, you're never going to run a 15/15.5 on them. Jason. Jason, Would it not work this way: 2 * (1 * 9V + 3 * 1,5V = 13,5) = 27V ? I.e. use four batteries for each side? Niels Last edited by Niels Doorduijn : 25th September 2006 at 07:23.
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