Is this normal? The numbers on the gauge are always within a few hundredths of the monitor. When I checked the amperage with a gauge, I get 12.4 on one DC, 12.5 on the other (that was before they were combined - now they are combined at about 12.5 after cooling down off the alternator) and IIRC about 12.6 on the start batt. I want to make sure they are fully charged when I sync. I've put them in the boat and had lights on minimally, and possibly ran the engine for 30-45 minutes. I charged to float, surprised that it took about an hour for one of the batts (sales guy said they should be fully charged as the stickers were from May). I brought them home and charged with a (somewhat) cheap (new) charger that I bought. I want to sync my Xantrex Linkpro monitor to the fully charged batts. I'm not connected to shore power and haven't installed solar charging (good idea, I know). My only means of charging is via the 80 amp alternator on my new 2YM15 engine. I have a Blue Seas ACR linked to my Dual Circuit Plus switch (I'm sure ya'll have heard enough of my advocacy for that ), so I figured the lead-acid DC batts in house bank matched with the automotive start batt on aux bank would still be compatible. Ok, I didn't think there is a need to worry about that. Obviously it is maintenance free because there are no caps but, what does this mean? Is it a maintenance free lead-acid, gel, agm? No literature describes. Secondly, the start battery is described as "automotive" opposed to "lead-acid automotive" for the ones that have caps for re-fill. Can this be right? Obviously, the lack of clarity didn't deter me from laying out the cash. This seemed too high based on values I was able to gleen elsewhere on internet. In any case, at the store, the battery claims to be rated at 109 ah. None of them seem to translate into an equalized value so it seems impossible to compare. hours rated at 5 amp, 15 amp, 20 amp, 25 amp. When I could find information on the ah rating, if I can find anything, it comes in a variety of formats, i.e. First off, I'm frustrated by lack of info that I can find on internet. I purchased 2 EverStart GRP 27 DC for house bank and 1 EverStart H5 for start batt and finished with the installation.Īs an aside, one reason I was attracted to the Walmart DC batts is the vertical height to top of post is about 1/2" lower than competing brands, which is very important in my batt compartment (taller batteries just won't fit without modifying the compartment).īeing the kind of "shoot first, ask questions later" kind of guy that I am, I'm looking for some helpful input. So, I basically decided to start new all the way around. I recently noticed that my (Sears) GRP 27 deep cycle batt was failing to charge and the other batt in my single bank was a GRP 29 bought at a different time. I seem to recall that you (MS) gave a favorable review to Walmart batteries.
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