$5.50 voltmeter with load checker.
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Here are a couple from china only place i know where to get them , Ebay seems to be dry at the moment and even then they would more then likely be coming from china. Going to take quite awhile to get here this time of year
http://www............com/product-f...uzzer-Alarm-1S-6S-3-7V-22-2V-wholesalers.html
Li-Po Battery Voltage Indicator Checker Tester 1S-6S
I have not used either one of these companies but the .......... seems safer with the escrow deal they have going on, Seller dont get paid till you receive your order .
First link is not working the company name is getting filtered with dots not sure what the deal is with that.
http://www............com/product-f...uzzer-Alarm-1S-6S-3-7V-22-2V-wholesalers.html
Li-Po Battery Voltage Indicator Checker Tester 1S-6S
I have not used either one of these companies but the .......... seems safer with the escrow deal they have going on, Seller dont get paid till you receive your order .
First link is not working the company name is getting filtered with dots not sure what the deal is with that.
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Check here also but java's source looks real good.
This one has a different orientation.
edit: java - the top link isn't working.....
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yeah i guess the forum filters out the name of the company , maybe problems in the past but it keep putting in dots for the name when i try to fix it.
That one you posted is a S2 -S6 for the meter to work right for our needs you need a S1-S6 or at least one that does S1 there are some S1-S8 out there that would work.
Edit: here is a ebay one with buzzers and led light. It is a S1-S6. I took a cutting wheel and just cut the board off where the led is. Works fine someone else said they carved the buzzers out of theirs and it worked. http://cgi.ebay.com/Lipo-Battery-Voltmeter-tester-Low-Voltage-Buzzer-Alarm-/400173173991?pt=Radio_Control_Parts_Accessories&hash=item5d2c2e0ce7#ht_3486wt_1141
That one you posted is a S2 -S6 for the meter to work right for our needs you need a S1-S6 or at least one that does S1 there are some S1-S8 out there that would work.
Edit: here is a ebay one with buzzers and led light. It is a S1-S6. I took a cutting wheel and just cut the board off where the led is. Works fine someone else said they carved the buzzers out of theirs and it worked. http://cgi.ebay.com/Lipo-Battery-Voltmeter-tester-Low-Voltage-Buzzer-Alarm-/400173173991?pt=Radio_Control_Parts_Accessories&hash=item5d2c2e0ce7#ht_3486wt_1141
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This is the schematic for the first one I built. I do not use the switch anymore. I just removed the switch and connect one wire from pin 2 to both carto's plus side.
It is easy to just unscrew/screw the carto to check loaded and un-loaded voltage
It is easy to just unscrew/screw the carto to check loaded and un-loaded voltage
Thanks for reposting the schematic, Blue. I am about to build one and was trying to see if I had the wiring right in my head by studying your pic in your first post. The schematic is much easier 
and good to know I had it right -- trying to follow the pic, I thought I was missing something.
and good to know I had it right -- trying to follow the pic, I thought I was missing something.- Status
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