Change in Trojan users Guide

[mena661]

Noticed a change in the charging and absorb voltages in the Trojan Users Guide. Both are a bit higher than before.



Page 13.

Trojan Users Guide

[mena661]

BFL13 wrote:

One of the tables says equalize at 15.5 though. No idea what that last jump in voltage is in the profile. Looks like the new "finish" stage" at the end of the absorption stage some profiles now have, but those don't go that high.

finish stage is usually same voltage as equalize only it stops. To equalize you continue the finish stage for extra time. Compare

http://pdf.wholesalesolar.com/battery-folder/charging_instruction_2011_2.pdf

I'm reading that as the finish charge at the end on the Trojan graph. It seems that Trojan doesn't have a set voltage for doing the finish charge but a range (no set voltage for charging either it seems). The US battery info is pretty specific, even gives approximate finish charging time.

[BFL13]

mena661 wrote:

landyacht318 wrote:
So pump them upto 16.74v to get 100% ????

2.79 Volts per cell! Anybody else think this is a typo?

It was like 16.2V before so I'm thinking it's not. I know I've never needed that much voltage.

One of the tables says equalize at 15.5 though. No idea what that last jump in voltage is in the profile. Looks like the new "finish" stage" at the end of the absorption stage some profiles now have, but those don't go that high.

finish stage is usually same voltage as equalize only it stops. To equalize you continue the finish stage for extra time. Compare

http://pdf.wholesalesolar.com/battery-folder/charging_instruction_2011_2.pdf

[mena661]

landyacht318 wrote:
So pump them upto 16.74v to get 100% ????

2.79 Volts per cell! Anybody else think this is a typo?

It was like 16.2V before so I'm thinking it's not. I know I've never needed that much voltage.

[1100Sabre]

SCVJeff wrote:

HappyKayakers wrote:
:? I thought you were talking about the other Trojan. Never mind.

but he gets folks that otherwise would skip it

Due to contrary belief they do have serial numbers!!
:B

[landyacht318]

So pump them upto 16.74v to get 100% ????

2.79 Volts per cell! Anybody else think this is a typo?

[mena661]

BFL13 wrote:

Note how your nice batts will have more capacity in the 100+ F heat but die sooner.

I wonder if I get the longevity back at night when it dips down into the 60's?

[SCVJeff]

HappyKayakers wrote:
:? I thought you were talking about the other Trojan. Never mind.

but he gets folks that otherwise would skip it

[BFL13]

Thanks mena. I see the chart on capacity vs temperature is more severe than some similar ones. You sure see that when camping in 35-40F temps.

Note how your nice batts will have more capacity in the 100+ F heat but die sooner.

[mena661]

HappyKayakers wrote:
:? I thought you were talking about the other Trojan. Never mind.

LOL! :B

[HappyKayakers]

:? I thought you were talking about the other Trojan. Never mind.