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Author Topic: Way to find out if SLA is charged??  (Read 6874 times)

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Offline Swampy

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Way to find out if SLA is charged??
« on: January 23, 2004, 05:29:43 PM »
Just got my 2 SLAs in the mail, is there anyway if I can check to see if they are fully charged so I can use them tonight... THANKS!
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Offline Chuck

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Re:Way to find out if SLA is charged??
« Reply #1 on: January 23, 2004, 05:33:24 PM »
Where'd you buy them? Some places charge them before shipping.
Do you have a VOM?
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Offline Swampy

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Re:Way to find out if SLA is charged??
« Reply #2 on: January 23, 2004, 05:35:55 PM »
I got them off a board member, I think he said he charged them, but I cant remember...
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Offline Chuck

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Re:Way to find out if SLA is charged??
« Reply #3 on: January 23, 2004, 05:38:17 PM »
Hey Alex:

Do you have a Volt Ohm meter? They are cheap and invaluable in my opinion for check things like continuity and batteries.
When my 12 v SLA's are full, they read around 13 v.
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Microphones: AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements,  Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
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Offline Swampy

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Re:Way to find out if SLA is charged??
« Reply #4 on: January 23, 2004, 05:39:09 PM »
ya, what pins should I put them on???
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Offline Chuck

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Re:Way to find out if SLA is charged??
« Reply #5 on: January 23, 2004, 05:41:07 PM »
Quote from: Alex "swampy" Herd on January 23, 2004, 05:39:09 PM
ya, what pins should I put them on???

Are they 12 v or 6 v.
Do they have 4 pin XLR ends?
Pin 1 is negative for both. Pin 4 is positive for 12 v.
Don't know about 6 v.
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Reality is merely an illusion, albeit a very persistent one.

Microphones: AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements,  Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
Pre-amps: Naiant littlebox, Naiant littlekit v2.0, BM2p+ Edirol UA-5, Church STC-9000
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Offline Swampy

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Re:Way to find out if SLA is charged??
« Reply #6 on: January 23, 2004, 05:43:14 PM »
thanks!
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Offline Chuck

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Re:Way to find out if SLA is charged??
« Reply #7 on: January 23, 2004, 05:44:11 PM »
If they read read at or above rated voltage you're prob good to go.
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Microphones: AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements,  Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
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Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
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Offline Swanny

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Re:Way to find out if SLA is charged??
« Reply #8 on: January 23, 2004, 05:44:31 PM »
Pin 1 ground 12v
Pin 4 + 12v
Pin 2 ground 6v
Pin 3 + 6v
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Offline Chuck

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Re:Way to find out if SLA is charged??
« Reply #9 on: January 23, 2004, 05:47:08 PM »
Alex... do you have a new pre-amp?
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Reality is merely an illusion, albeit a very persistent one.

Microphones: AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements,  Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
Pre-amps: Naiant littlebox, Naiant littlekit v2.0, BM2p+ Edirol UA-5, Church STC-9000
Recorders: Sound Devices MixPre-6, iRiver iHP-120 (Rockboxed & RTC mod)

Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
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Offline Swampy

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Re:Way to find out if SLA is charged??
« Reply #10 on: January 24, 2004, 02:18:44 AM »
Quote from: calico on January 23, 2004, 05:47:08 PM
Alex... do you have a new pre-amp?

Indeed I do! GP Dmic-20! So Im running 391 > dmic > d8. I just got back from Lotus, pulled a sick stage tape IMHO...
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Offline F.O.Bean

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Re:Way to find out if SLA is charged??
« Reply #11 on: January 24, 2004, 02:31:52 AM »
Quote from: Alex "swampy" Herd on January 24, 2004, 02:18:44 AM
Quote from: calico on January 23, 2004, 05:47:08 PM
Alex... do you have a new pre-amp?

Indeed I do! GP Dmic-20! So Im running 391 > dmic > d8. I just got back from Lotus, pulled a sick stage tape IMHO...

you likin the dmic??? ;D
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Offline Swampy

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Re:Way to find out if SLA is charged??
« Reply #12 on: January 24, 2004, 02:35:07 AM »
lovin it! THANKS AGAIN BEAN! +T!
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Offline F.O.Bean

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Re:Way to find out if SLA is charged??
« Reply #13 on: January 24, 2004, 02:48:13 AM »
Quote from: Alex "swampy" Herd on January 24, 2004, 02:35:07 AM
lovin it! THANKS AGAIN BEAN! +T!

suite, maybe ill sell it to ya soon!! ;)so i can actually pay off the v3 and get a new soundcard, and a d-8 that werks ;)then a jb3, converter box, some 63 caps, and a modsbm1 ;D
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Offline BCostigan

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Re:Way to find out if SLA is charged??
« Reply #14 on: January 24, 2004, 08:31:15 AM »
The voltage reading on an SLA will NOT tell you if it's fully charged by just putting the meter across the terminals.  DC voltage must be measured under load for a somewhat accurate reading.  With that I would hook up the deck, pre, whatever is being run and run it...THEN check voltage.  As was stated if it's a 12volt somewhere around 13 volts should be fully charged.  



Again...check voltage under load cause it might look fine when it's not powering anything but then you get the show and plug in your pre...uh oh!

 :)
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Offline Chuck

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Re:Way to find out if SLA is charged??
« Reply #15 on: January 24, 2004, 10:46:42 AM »
I built this thing a while back. It is a 12 v -9 v regulated converter and battery tester. In the picture on the left hand side is the panel mount input connector.
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Reality is merely an illusion, albeit a very persistent one.

Microphones: AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements,  Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
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Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
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Offline chase

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Re:Way to find out if SLA is charged??
« Reply #16 on: January 24, 2004, 03:41:15 PM »
+T calico, that is pretty nifty.
+T alex for the 391 > dmic combo.  i used to run this and it is an awesome rig for the $.  are you gonna put that lotus up on the archive.org?  i know you had a little incident, that's why i ask.  i would love to get a copy.
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Offline Swampy

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Re:Way to find out if SLA is charged??
« Reply #17 on: January 24, 2004, 04:16:58 PM »
Quote from: chase on January 24, 2004, 03:41:15 PM
+T alex for the 391 > dmic combo.  i used to run this and it is an awesome rig for the $.  are you gonna put that lotus up on the archive.org?  i know you had a little incident, that's why i ask.  i would love to get a copy.

I think Im gonna bit torrent it in a little bit, Ill post it in the kickdown.
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Offline Chuck

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Re:Way to find out if SLA is charged??
« Reply #18 on: January 24, 2004, 07:16:48 PM »
Quote from: Swanny on January 23, 2004, 05:44:31 PM
Pin 1 ground 12v
Pin 4 + 12v
Pin 2 ground 6v
Pin 3 + 6v

Unfortunately after researching this, I've found that Oade and Eco-Charge use diffrent pin-outs for DC connectors.

Oade 6v =
Pin 1 Ground
Pin 2 Hot

What Swanny posted is the pin-outs for the Eco-Charge system.
The Eco-Charge system pinouts seem to  be the standard most used.
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Reality is merely an illusion, albeit a very persistent one.

Microphones: AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements,  Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
Pre-amps: Naiant littlebox, Naiant littlekit v2.0, BM2p+ Edirol UA-5, Church STC-9000
Recorders: Sound Devices MixPre-6, iRiver iHP-120 (Rockboxed & RTC mod)

Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
Recording website & blog: http://www.timebetweenthenotes.com
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