Some specs for those interested...
Product:
1747-L20 SLC-500 Processor
1747-L30 SLC-500 Processor
1747-L40 SLC-500 Processor
1747-L511 SLC-5/01 Processor
1747-L514 SLC-5/01 Processor
1747-L524 SLC-5/02 Processor
1747-L531 SLC-5/03 Processor
1747-L532 SLC-5/03 Processor
1747-L541 SLC-5/04 Processor
1747-L542 SLC-5/04 Processor
1747-L543 SLC-5/04 Processor
1747-L551 SLC-5/05 Processor
1747-L552 SLC-5/05 Processor
1747-L553 SLC-5/05 Processor
Battery:
Catalog Number 1747-BA
Part Number A40845-478-01 Battery Packaged Device
A40063-043-01 Lithium Battery Assembly
Description Lithium
3V nominal
0.23g of lithium
Supplier:
SANYO
Part No SANYO CR14250SE
Lithium
3.0V nominal voltage
850mAh nominal capacity (end discharge of 2.0V when battery allowed to discharge at a standard current level @ 23oC (73oF))
0.5mA standard discharge current
7mA maximum continuous discharge current (50% of nominal capacity obtained with end voltage of 2.0V @ 23oC (73oF))
70mA maximum pulse discharge current (2.0V cell voltage when 15 second pulse applied at 50% discharge depth @ 23oC (73oF))
Dimensions: 14.5mm dia. x 25.0mm lg.
Life:
Approximated SANYO Data from similar battery:
High-rate Discharge (Load = 180 @ 14mA)
Temperature Approximate time of discharge (3.0V to 2.0V)
60oC (140oF) 80 hours
23oC (73oF) 52.8 hours
0oC (32oF) 28.6 hours
Low-rate Discharge (Load = 150k @ 20mA)
Temperature Approximate time of discharge (3.0V to 2.0V)
60oC (140oF) 9.5 years
23oC (73oF) 10.3 years
-20oC (-4oF) 10.7 years
Capacity Retention (Load = 5.6k @ 505mA; End voltage = 2.0V)
Temperature Approximate retention time (100% to @ 93%)
60oC (140oF) 2 years
40oC (104oF) 5.4 years
23oC (73oF) 10 years
Discharge Characteristics After Storage (Load = 5.6k @ 505mA)
Temperature Approximate discharge time (3.0V to 2.0V)
70oC (158oF) 154 days
(equivalent to 10 years at room temperature)
23oC (73oF) 156 days
1747-L20, -L30, -L40, -L511- Battery provides back-up for approximately 5 years
1747-L514, -L524, -L531, -L532, -L541, -L542, -L543, -L551, -L552, -L553 - Battery provides back-up for approximately 2 years
BATTERY LOW/BATT red LED indicator ON when battery voltage has fallen below threshold level or the battery and the battery jumper is missing
Installation:
SLC 500 - 1 in holder, behind processor front cover
SLC 5/01, -5/02 - 1 in retaining clips, behind processor front door
SLC-5/03, -5/04, -5/05 - 1 in retaining clips, processor left side rear
Accessories 1747-BAJMPR Battery Jumper
Notes:
The SLC 500 Fixed Controllers, 1747-L20, -L30, -L40 and the 1747-L511, SLC 5/11 processor have a back-up capacitor to maintain the contents of the RAM for a period of 5 to 30 days. If a longer period of back-up time is required than that, install the optional 1747-BA battery.
The SLC 5/03, 5/04 and 5/05 processors have a capacitor that provides at least 30 minutes of battery back-up while the battery is disconnected. Data in RAM is not lost if the battery is replaced within 30 minutes.
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ApSol said:
Does anyone know if a 3.6V, after market battery will work?...
Yes, certain ones of the right spec will. We have been making our own for years with various different batteries from various different manufacturers with no issues to report other than the little hassle of doing the soldering. they are nearly always 3.6V, so I wouldn't worry too much on that front. It's quite possible the one you have will do the job.
The latest battery we have been using is the VARTA ER 1/2 AA with pre-soldered legs. you can see it at the top here, along with others we've used or made...
Regards,
George