Battery Endurance not good?

Schnee · 05-12-07, 10:17 AM

Am I just spoiled by SHIII's Type IIV's performance underwater (ie 12 hr plus at creeping along) or do the US subs have crummier batteries. Seems like the best I can get out of mine so far is 8-9 hrs submerged creeping along.

Its just that I have gotton tired of cruising along on the surface in daylight being a punching bag for aircraft. So I'll spend most of the day cruising underwater, surfacing a bit before sunset.

mookiemookie · 05-12-07, 11:05 AM

This has been fixed. Mod is located here: http://www.subsim.com/radioroom/showthread.php?t=109120

Sailor Steve · 05-12-07, 11:09 AM

Well, you came to the right place:
http://www.subsim.com/radioroom/show...t=battery+life

GnarPow · 05-12-07, 12:35 PM

just go to 2.5 knots and you can cruise for a lot longer than 1/3 ahead

-Pv- · 05-12-07, 03:40 PM

The default battery performance is historically accurate and only needs moding for the players who want 1950s nuc boats. As has been suggested your "creep along" may not be slow enough to get the endurace you need. Go slower. I have been able to stay submerged over 18 hours at 2 knots and have easily outlasted all attacks to date.
-Pv-

AVGWarhawk · 05-12-07, 03:44 PM

Agreed with PV! 2 kts and you can stay down just about all day. I find battery life just about on the money as far as accuracy.

NEON DEON · 05-12-07, 04:03 PM

Quote:

Originally Posted by AVGWarhawk

Agreed with PV! 2 kts and you can stay down just about all day. I find battery life just about on the money as far as accuracy.

I get the same results and they seem to fit at 2 Knots with actual boat performance.

What I am wondering, however, does the power consumption ramp up faster than it should given the amount of speed that is applied?

Krupp · 05-12-07, 04:55 PM

Quote:

Originally Posted by -Pv-

The default battery performance is historically accurate and only needs moding for the players who want 1950s nuc boats. As has been suggested your "creep along" may not be slow enough to get the endurace you need. Go slower. I have been able to stay submerged over 18 hours at 2 knots and have easily outlasted all attacks to date.
-Pv-

:hmm:, oookey. Then how come the ww2 Fleet sub manual give us these figures?

Based on the following research
data from the Fleet Submarine Manual.

Maximum Time Submerged and Cruising Range vs. Submerged Speed Knots
knots--miles(peace-time)-- miles (war-time) --hours(peace-time) -hours(war-time)
2 ------73 --------------100-110 ------------36 ----------------55
3 ------69 --------------100-105 ------------24 ----------------38
4 ------55 --------------83 -----------------14 -----------------24
5 ------40 --------------64 ------------------8.5 ---------------14.5
6 ------30 --------------48 ------------------5 -----------------9
7 ------20 --------------31 -----------------2.6 ----------------4.8
8 ------14 --------------23 -----------------1.6 ----------------2.6
9 ------9 ---------------15 ------------------1 -----------------1.5
10 -----10 --------------X--------------------X-----------------X

Redwine · 05-12-07, 05:49 PM

Most of the sim's subs can, historically, be able to stay 48hs at 2knots.

Balao and Gato has about 34 hs at 3knots in peace time and about 39 hs at 3knots at war time.

NEON DEON · 05-12-07, 11:17 PM

Quote:

Originally Posted by Krupp

Quote:

Originally Posted by -Pv-

The default battery performance is historically accurate and only needs moding for the players who want 1950s nuc boats. As has been suggested your "creep along" may not be slow enough to get the endurace you need. Go slower. I have been able to stay submerged over 18 hours at 2 knots and have easily outlasted all attacks to date.
-Pv-

:hmm:, oookey. Then how come the ww2 Fleet sub manual give us these figures?

Based on the following research
data from the Fleet Submarine Manual.

Maximum Time Submerged and Cruising Range vs. Submerged Speed Knots
knots--miles(peace-time)-- miles (war-time) --hours(peace-time) -hours(war-time)
2 ------73 --------------100-110 ------------36 ----------------55
3 ------69 --------------100-105 ------------24 ----------------38
4 ------55 --------------83 -----------------14 -----------------24
5 ------40 --------------64 ------------------8.5 ---------------14.5
6 ------30 --------------48 ------------------5 -----------------9
7 ------20 --------------31 -----------------2.6 ----------------4.8
8 ------14 --------------23 -----------------1.6 ----------------2.6
9 ------9 ---------------15 ------------------1 -----------------1.5
10 -----10 --------------X--------------------X-----------------X

Nice!

Does the mod use this?

05-12-07, 10:17 AM	#1
Schnee Engineer Join Date: Oct 2005 Posts: 209 Downloads: 2 Uploads: 0	Battery Endurance not good? Am I just spoiled by SHIII's Type IIV's performance underwater (ie 12 hr plus at creeping along) or do the US subs have crummier batteries. Seems like the best I can get out of mine so far is 8-9 hrs submerged creeping along. Its just that I have gotton tired of cruising along on the surface in daylight being a punching bag for aircraft. So I'll spend most of the day cruising underwater, surfacing a bit before sunset.

05-12-07, 11:05 AM	#2
mookiemookie Navy Seal Join Date: Nov 2005 Location: Houston, TX Posts: 9,404 Downloads: 105 Uploads: 1	This has been fixed. Mod is located here: http://www.subsim.com/radioroom/showthread.php?t=109120 __________________ They don’t think it be like it is, but it do. Want more U-boat Kaleun portraits for your SH3 Commander Profiles? Download the SH3 Commander Portrait Pack here.

05-12-07, 11:09 AM	#3
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	Well, you came to the right place: http://www.subsim.com/radioroom/show...t=battery+life __________________ “Never do anything you can't take back.” —Rocky Russo

05-12-07, 03:44 PM	#6
AVGWarhawk Lucky Jack Join Date: Jun 2005 Location: In a 1954 Buick. Posts: 28,254 Downloads: 90 Uploads: 0	Agreed with PV! 2 kts and you can stay down just about all day. I find battery life just about on the money as far as accuracy. __________________ “You're painfully alive in a drugged and dying culture.” ― Richard Yates, Revolutionary Road

05-12-07, 05:49 PM	#9
Redwine Sea Lord Join Date: Jan 2002 Location: San Martin de los Andes, Neuquen, , Argentina. Posts: 1,962 Downloads: 10 Uploads: 0	Most of the sim's subs can, historically, be able to stay 48hs at 2knots. Balao and Gato has about 34 hs at 3knots in peace time and about 39 hs at 3knots at war time. __________________ . "SH III and SH IV Mods" "Manual TDC Tutorial" "SH2 Downloads Selection"

05-12-07, 12:35 PM	#4
GnarPow Gunner Join Date: Apr 2007 Posts: 96 Downloads: 0 Uploads: 0	just go to 2.5 knots and you can cruise for a lot longer than 1/3 ahead

05-12-07, 03:40 PM	#5
-Pv- The Old Man Join Date: Apr 2006 Posts: 1,434 Downloads: 5 Uploads: 0	The default battery performance is historically accurate and only needs moding for the players who want 1950s nuc boats. As has been suggested your "creep along" may not be slow enough to get the endurace you need. Go slower. I have been able to stay submerged over 18 hours at 2 knots and have easily outlasted all attacks to date. -Pv-