Charging volts 14.40?
Road Captain
Joined: Sep 2013
Posts: 575
Likes: 190
From: USA
Same problem here. 1 year old Westec 400ah battery. Went to auto parts store and they tested and said it was good but would show amber led after it sat over night. Replaced with a Mega Crank and with my luck I got a dud. It worked great for 30 days then led was red over night. Called Battery Mart and the said they have sold over a thousand without any problems. Exchanged for a new one and all is well for the last 9 days. 
Grand HDF Member
Joined: Dec 2007
Posts: 4,999
Likes: 55
From: Bay Area
Same problem here. 1 year old Westec 400ah battery. Went to auto parts store and they tested and said it was good but would show amber led after it sat over night. Replaced with a Mega Crank and with my luck I got a dud. It worked great for 30 days then led was red over night. Called Battery Mart and the said they have sold over a thousand without any problems. Exchanged for a new one and all is well for the last 9 days.
Road Captain
Joined: Sep 2013
Posts: 575
Likes: 190
From: USA
The Big Crank is the Deka and is 400cca / 26ah. I talked with the rep and he is very happy with the results of the Mega Crank (non Deka) 420cca / 30ah.
I just wanted a little more juice for playing the stereo and turning over my high compression motor.
I just wanted a little more juice for playing the stereo and turning over my high compression motor.
Road Captain
Joined: Jun 2008
Posts: 502
Likes: 3
From: Sarasota, Florida
There is a new battery by Dekka. Part # is WPX30L-LS 30ah and 600 cca
Really spins the motor over. The name for the battery is "Lightning Start"
Available at Amazon.com for $129.99, and free shipping. Just search WPX30L-LS
Really spins the motor over. The name for the battery is "Lightning Start"
Available at Amazon.com for $129.99, and free shipping. Just search WPX30L-LS
Grand HDF Member
Joined: Jan 2012
Posts: 4,459
Likes: 2,896
From: Oklahoma
Rats, I just got a new 400 cca Deka, like the specs on the new battery. Just for grins I am doing a few calculations. 600 cca times 12.5 volts yields 7500 watts. 746 watts equals one horsepower yielding a THEORETICAL 10 horsepower from your starter. I am confident that there are losses that cut pretty deeply into that but it is still better than the factory battery. Beyond my ability to calculate is how many amps or watts our factory battery cables can carry before heat loss becomes significant. I suspect that 600 cca gets pretty close to their limit. Given my success with Deka batteries I almost look forward to needing my next battery so I can get the 600 cca unit.
Grand HDF Member
Joined: Jan 2012
Posts: 4,459
Likes: 2,896
From: Oklahoma
While you were checking Battery Mart site I wrote them a note asking when or if they plan to carry the new Lightening Start Deka battery. It's only been 10 to 15 minutes but I don't really expect an answer until tomorrow at the earliest. I will post when the answer comes in.
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Seasoned HDF Member
Joined: Sep 2008
Posts: 20,880
Likes: 33,837
Yep, 4 years is when I buy a new one. I just don't want to be stranded in the middle of no where. Not fun!