Firefly AC/DC electric fan FEL 631

**StockEngine** · January 18th, 2018 02:49 PM

Originally Posted by bigT

I agree with you, the 2 blue wires denote they are the same wire connecting the 2 batteries in series.

arent the batteries connected to the charger? or yan blue cables connected sa load side?

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**bigT** · January 18th, 2018 03:20 PM

Originally Posted by StockEngine

arent the batteries connected to the charger? or yan blue cables connected sa load side?

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The charger is build in, the wires come through an opening in the each compartment,
I can't see where the other ends of the wires are connected to.

**oj88** · January 18th, 2018 04:00 PM

Originally Posted by bigT

The charger is build in, the wires come through an opening in the each compartment,
I can't see where the other ends of the wires are connected to.

There's an easy way to find out which is which with a digital voltmeter/tester.

CAUTION: DO NOT attempt this if you're uncomfortable doing it. I won't be liable for any damage or injury that may come out as a result. Do this at your own risk.

1. Remove all batteries and make sure none of the disconnected wires are touching each other or any conducting surface
2. Are the two batteries identical? What is the nominal voltage of each battery (check the markings)
3. Set the tester for voltage measurement in the 0-100V DC range (if it's not an auto-ranging model)
4. Again, make sure that none of the battery wires are touching each other and plug the fan's power cord into a 220V AC source
5. Put the RED probe on the RED wire and the BLACK probe on the BLACK wire
6. Note the DC voltage readout and check if there's a negative (-) sign in front of the readout
7. Disconnect the AC power
8. Set the tester for continuity mode testing
9. Put the RED probe in one end of the BLUE wire and the BLACK probe on the other end of the BLUE wire and note the tester's beahvior

In summary:
1. Is the voltage detected in Step 6 a positive number that is approximately TWICE the nominal voltage of one (1) battery (taken from Step 2)?
2. Did the tester indicated a short circuit or started beeping on Step 9?

If the answers to both questions are YES, then the diagram I provided in Post 2 shows the correct battery orientation.

-------(red wire)-------------(+)[Battery 1](-)----- (blue wire)-----(+)[Battery 2](-)-------------(black wire)---------

**12vdc** · January 18th, 2018 09:37 PM

Or if you are not techie enough to tinker the wires, you may just drop-by any Ace Hardware and check the same model of fan, ask the salesman to open the battery compartment for inspection pretending to be comparing units, then take a pic.

Last resort would be the service center, i think there is one near SM Manila besides Andoks.

**dr. d** · January 19th, 2018 01:53 AM

"how much is a new one?"

**bigT** · January 19th, 2018 11:08 AM

Originally Posted by oj88

There's an easy way to find out which is which with a digital voltmeter/tester.

CAUTION: DO NOT attempt this if you're uncomfortable doing it. I won't be liable for any damage or injury that may come out as a result. Do this at your own risk.

1. Remove all batteries and make sure none of the disconnected wires are touching each other or any conducting surface
2. Are the two batteries identical? What is the nominal voltage of each battery (check the markings)
3. Set the tester for voltage measurement in the 0-100V DC range (if it's not an auto-ranging model)
4. Again, make sure that none of the battery wires are touching each other and plug the fan's power cord into a 220V AC source
5. Put the RED probe on the RED wire and the BLACK probe on the BLACK wire
6. Note the DC voltage readout and check if there's a negative (-) sign in front of the readout
7. Disconnect the AC power
8. Set the tester for continuity mode testing
9. Put the RED probe in one end of the BLUE wire and the BLACK probe on the other end of the BLUE wire and note the tester's beahvior

In summary:
1. Is the voltage detected in Step 6 a positive number that is approximately TWICE the nominal voltage of one (1) battery (taken from Step 2)?
2. Did the tester indicated a short circuit or started beeping on Step 9?

If the answers to both questions are YES, then the diagram I provided in Post 2 shows the correct battery orientation.

-------(red wire)-------------(+)[Battery 1](-)----- (blue wire)-----(+)[Battery 2](-)-------------(black wire)---------

You are correct.

Step 6: readout = 14.5v
Battery Spec.:
Constant voltage charge. Cycle use:7.25-7.45v. Standby use :6.5-6.9v.
The charger charges 2 batteries in series.

Step 9:
The tester was bleeping showing the 2 blue wires are the ends of a same wire.

**bigT** · January 19th, 2018 11:10 AM

Originally Posted by dr. d

"how much is a new one?"

I bought it during sales in Ace Hardware in March 2016, it costed me P2785.

I used the fan several times only, and I have noticed the batteries did not keep charge as long as other same type battery, until 3-4 days ago, I charged the fan again, and I found the batteries were dead.

**bigT** · January 19th, 2018 11:25 AM

Originally Posted by 12vdc

Or if you are not techie enough to tinker the wires, you may just drop-by any Ace Hardware and check the same model of fan, ask the salesman to open the battery compartment for inspection pretending to be comparing units, then take a pic.

Last resort would be the service center, i think there is one near SM Manila besides Andoks.

Ace Hardware is not selling the fan any more. it seems Firefly has stop production.

**dr. d** · January 20th, 2018 11:41 AM

Originally Posted by bigT

I bought it during sales in Ace Hardware in March 2016, it costed me P2785.

I used the fan several times only, and I have noticed the batteries did not keep charge as long as other same type battery, until 3-4 days ago, I charged the fan again, and I found the batteries were dead.

aha!
in that case, follow oj's reply in #2. it's probably what you want.
btw, sealed lead-acid battery yan, 'no?
i have a similar unit but different brand, in the house somewhere. i distruncated it because i wanted to replace the already-dead batteries. but i can't seem to find the correct size. "imported kasi".
ah well...

**bigT** · January 20th, 2018 01:14 PM

Originally Posted by dr. d

aha!
in that case, follow oj's reply in #2. it's probably what you want.
btw, sealed lead-acid battery yan, 'no?
i have a similar unit but different brand, in the house somewhere. i distruncated it because i wanted to replace the already-dead batteries. but i can't seem to find the correct size. "imported kasi".
ah well...

My fan uses two 6V 4.5AH lead acid batteries, but the battery is always out of stock in Ace Hardware and Handyman.

I noted recently, the manufacturers are fond of using uncommon size batteries in their products, you can never find a replacement in the shops, it seems the manufacturers are using this method to push people to buy a new device when the battery is dead.