Battery Equivalents

J

jmellc

Senior Member
Location
Durham, NC
Occupation
Facility Maintenance Tech. Licensed Electrician
We had a battery module recently lost from a touchless faucet. I think it fell loose from the tape mount & was discarded by someone. We pulled a battery module from a spare faucet and replaced it, all good. But now we need to replace the one we robbed. This takes 6 AA batteries. The modules cannot be ordered from our supplier and we have no brackets on hand. I do have a few 9 volt snap caps so I'm thinking of putting a few 9 volt batteries in series to give it the amps needed. I saw 1 article stating that the 6 AA batteries give more amps than a single 9V but no ratios to use. Have any of you dealt with this or know of a good chart? Thanks for any help. I have plenty of scrap material to make a mounting plate of sorts.
 
Why not just order a generic battery holder for the AA's? Putting 9V batteries in series will increase the voltage not the current.
I would also verify the voltage the faucet is expecting. Is it 9V or does the factory battery holder have 2 sets of 3 hooked in parallel for a 4.5V supply?
 
One line sources show that the AA has 3 to 5 times the ampere hours of a 9 volt battery, so 3 to 5 nine volt batteries in parallel.
 
don_resqcapt19 said:
One line sources show that the AA has 3 to 5 times the ampere hours of a 9 volt battery, so 3 to 5 nine volt batteries in parallel.
Click to expand...
For a short term emergency solution that might make sense but for the long term the battery cost will be substantially more that using AA's.
9V batteries not not commonly used any more. Most devices are using AA or AAA now. I believe the current price for a 9V is about 10 times the price of AA or AAA.
 
heres a 6 cell AA holder w/ a 9v snap
www.parts-express.com

6 AA Cell Battery Holder

6 AA Cell Battery HolderUseful for replacing worn battery holders in portable radios and other electronics. Perfect for the electronic hobbyist and kit builder. Requires 9V battery type snap clip, sold separately.Specification: • Dimensions without 9 volt terminals: 2.3" W x 1.8" H x 1.11" D...
www.parts-express.com
 
Interesting fact.

9V batteries were invented to power transistor radios using 'alloy' transistors, previous radios required 22.5 V batteries

1956 – Alloy transistors were introduced, meaning radios that had previously been powered by 22.5V were able to operate from lower voltages. Although originally marketed for vacuum tube hearing aids, the 9V battery found its first home.
 
Todd0x1 said:
heres a 6 cell AA holder w/ a 9v snap
www.parts-express.com

6 AA Cell Battery Holder

6 AA Cell Battery HolderUseful for replacing worn battery holders in portable radios and other electronics. Perfect for the electronic hobbyist and kit builder. Requires 9V battery type snap clip, sold separately.Specification: • Dimensions without 9 volt terminals: 2.3" W x 1.8" H x 1.11" D...
www.parts-express.com
Click to expand...
Thx for this. We found a battery pack on Grainger website and they are ordering it. Yes, I've seen a few varieties like this on Amazon & other sites. Sadly, we can't order from Amazon for some reason.
 
curt swartz said:
Why not just order a generic battery holder for the AA's? Putting 9V batteries in series will increase the voltage not the current.
I would also verify the voltage the faucet is expecting. Is it 9V or does the factory battery holder have 2 sets of 3 hooked in parallel for a 4.5V supply?
Click to expand...
tom baker said:
Amazon has AA battery holders
Click to expand...

Sadly, we can't order from Amazon for some reason. But we did find a battery pack on Grainger that the boss has ordered.
 
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