I need a guage reading please
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Stellar HDF Member
Joined: Nov 2005
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From: KMHT KFMY
I need a guage reading please
When you put the bike in ready to hit the start button mode, what is your volt meter reading?
I am seeing just over 10 volts with a fully charged brand new NAPA
30LBS battery, which is rated for 335CCA.
It just seems to me that is a low voltage and or big drain on the battery but I'd like your opinion.
I am seeing just over 10 volts with a fully charged brand new NAPA
30LBS battery, which is rated for 335CCA.
It just seems to me that is a low voltage and or big drain on the battery but I'd like your opinion.
Banned
Joined: Feb 2009
Posts: 6,259
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From: NW NC
Last time I checked I was getting 12.4 prior to start. After start should be putting out a bit over 14 volts. Since I have put in an Odyssey and have not checked but the CCA is I believe 650.
I was off a bit. I'm a firm believer that you usually get what ya pay for.
PC 925LMJ Specs:
I was off a bit. I'm a firm believer that you usually get what ya pay for.
PC 925LMJ Specs:
- 925 cranking amps for 5 seconds
- 870 cranking amps for 10 seconds
- 765 cranking amps for 20 seconds
- Short circuit current over 2400A
- 28 amp hours
- 50 minute reserve capacity with 25amp load
- Female brass terminal w/M6 SS bolt
- Measurements (for Harley mounts):
- Length 6 5/8"
- Width 4 15/16"
- Height 7"
- Weighs 25.5 lbs
Last edited by strtarrow; May 5, 2011 at 09:57 PM.
Seasoned HDF Member
Joined: Jul 2007
Posts: 6,336
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From: SW Minnesota
Went out to the garage earlier this evening and unplugged by Battery Tender while I worked on my GPS mount. Checking now, my nearly five year old Harley battery still gives me 12.5 volts
Mines varies a little, but the last time I saw 10 my battery was weak. If the battery is new, that doesn't necessarily mean its fully charged. What is the date of mfg on the battery?
Question? Does your bike turn over ok & start? My 2 yr old stock battery shows 10+ volts if the bike isn't running. It starts my 10.6:1 comp engine easily. It is a good idea to put your battery on a tender a couple times a week, especially if you take a lot of hops of less than twenty minutes, which is about how long it takes your charging system to replace what it took to start you bike.
Outstanding HDF Member
Joined: Sep 2005
Posts: 2,600
Likes: 7
From: Minnesota
This might help:
Starting the bike should not go lower than 9.6 - That pretty much is a load test.
First things first. A 12-volt battery is not a 12-volt battery. Twelve volts is just a nominal, convenient term used to distinguish one battery from another. A fully-charged 12-volt battery, allowed to "rest" for a few hours (or days) with no load being drawn from it (or charge going to it), will balance out its charge and measure about 12.6 volts between terminals.
When a battery reads only 12 volts under the above conditions, it's almost fully depleted. Actually, if a battery's resting voltage is only 12.0 to 12.1 it means only 20 to 25% of its useful energy remains. It's either a goner or it has been deep cycled, and a battery can only be deep-cycled a limited number of times before it is indeed dead.
12-volt batteries supply useful energy only through a limited range -- from over 14 volts (when fully charged and unrested) down to 10.5 volts in use/under load (when lights dim, your motorcycle is hard to start). No 12-volt battery will remain at over 14 volts for more than seconds unless it's being charged. The lowest limit is 10.5 volts (used in testing) and obviously
When a battery reads only 12 volts under the above conditions, it's almost fully depleted. Actually, if a battery's resting voltage is only 12.0 to 12.1 it means only 20 to 25% of its useful energy remains. It's either a goner or it has been deep cycled, and a battery can only be deep-cycled a limited number of times before it is indeed dead.
12-volt batteries supply useful energy only through a limited range -- from over 14 volts (when fully charged and unrested) down to 10.5 volts in use/under load (when lights dim, your motorcycle is hard to start). No 12-volt battery will remain at over 14 volts for more than seconds unless it's being charged. The lowest limit is 10.5 volts (used in testing) and obviously
Stellar HDF Member
Joined: Feb 2010
Posts: 3,395
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From: Southern California
Dash or needle style Voltmeters, other than their entertainment value, don't mean squat! Use a Digital Volt Ohm Meter (DVOM) at the battery. A fully charged battery will read 12.65 Volts at the battery. Anything more than that is a Surface Charge. Anything less is a battery that is less than 100% State of Charge (SOC). Below about 10.5 and there's a shorted cell.
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