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Old 10-24-2018, 03:13 AM   #1
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Default Who makes the best Flooded 6v for the money?

Like a freaking noob(which I am) I may have wiped out my batteries leaving them connected and discharging... They're only 2 years old too... Shame.

Anywho, I don't have the cash for nice AGMs right now, but don't want bottom of the barrel either.

Existing batteries are 6v Duracell 220ah. Not high end by any means. My grandfather didn't boondock much so they were just back ups.

I'm considering the Duracell Ultra Pro 235ah or the Deka 230ah. I can get a pair of either for under $300. That's doable.

Looked at Trojan 105s but can't find any locally around Raleigh NC and shipping is stupid.

Anything I'm missing or other options? Anyone know a place in my area with good prices?
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Old 10-24-2018, 03:40 AM   #2
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I'm also looking for a way to add a couple more batteries at some point to upgrade my boondocking ability... Not much room in my old SS Agile...
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Old 10-24-2018, 11:01 AM   #3
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The Trojans seem to still be GC style battery of choice for golf courses, but availability for you leaves that out, it appears. The other one that looks to compare well to Trojan would be Crown so you could check that out and see if you can get them locally. I have not heard enough about the two you mention to have a good idea on them.


I think nearly all new owners manage to kill off or at least injure a set of batteries, and experienced RV users certainly aren't perfect, either. Add to it that the charging equipment in most of the vans is not particularly great, and the case can be be made for using lower cost batteries, especially in GC six volt styles which are nearly all true deep cycle designs. If your batteries are likely going to get shortened life because of an OOPS or because is poor charging control, the high end batteries tend to lose some of their life advantages. Golf courses know that high end batteries give them the most life per dollar, but they also take very good care of them and have very good charging equipment.


In general, I have found that the Costco batteries are very good batteries for the money, although I have never personally had the GC batteries. They also have a very good warranty. Other folks have said they got good life out of Walmart batteries. If you catch sale pricing, they might be 1/2-2/3 the price of Trojans or Crowns, so worth considering.


My standard statement concerning batteries is that unless you have a good battery monitor (like a Trimetric), set up properly, you don't even know if you are abusing your batteries. With this in mind, longer term especially, saving some money on batteries, and using it to get a good battery monitor, would likely put you money ahead in the big picture.


Be sure to get to the scales to get weighed before you add more batteries to confirm you have enough load capacity for another 150# of batteries and mountings
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Old 10-24-2018, 12:53 PM   #4
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Originally Posted by booster View Post
The Trojans seem to still be GC style battery of choice for golf courses, but availability for you leaves that out, it appears. The other one that looks to compare well to Trojan would be Crown so you could check that out and see if you can get them locally. I have not heard enough about the two you mention to have a good idea on them.


I think nearly all new owners manage to kill off or at least injure a set of batteries, and experienced RV users certainly aren't perfect, either. Add to it that the charging equipment in most of the vans is not particularly great, and the case can be be made for using lower cost batteries, especially in GC six volt styles which are nearly all true deep cycle designs. If your batteries are likely going to get shortened life because of an OOPS or because is poor charging control, the high end batteries tend to lose some of their life advantages. Golf courses know that high end batteries give them the most life per dollar, but they also take very good care of them and have very good charging equipment.


In general, I have found that the Costco batteries are very good batteries for the money, although I have never personally had the GC batteries. They also have a very good warranty. Other folks have said they got good life out of Walmart batteries. If you catch sale pricing, they might be 1/2-2/3 the price of Trojans or Crowns, so worth considering.


My standard statement concerning batteries is that unless you have a good battery monitor (like a Trimetric), set up properly, you don't even know if you are abusing your batteries. With this in mind, longer term especially, saving some money on batteries, and using it to get a good battery monitor, would likely put you money ahead in the big picture.


Be sure to get to the scales to get weighed before you add more batteries to confirm you have enough load capacity for another 150# of batteries and mountings
Thanks. I'll look into Crown. Never heard of it. I have a 3-stage Tripp Lite charger. And my solar system has a monitor. I just boneheaded it and left it parked in the shade with the inverter on and batteries connected for a week after getting home from a late night drive. The converter cuts out at 10v but the remaining parasitic draw brought the charge down to 6v before I saw it... Costly error I won't make again... I hope.
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Old 10-24-2018, 01:40 PM   #5
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Thanks. I'll look into Crown. Never heard of it. I have a 3-stage Tripp Lite charger. And my solar system has a monitor. I just boneheaded it and left it parked in the shade with the inverter on and batteries connected for a week after getting home from a late night drive. The converter cuts out at 10v but the remaining parasitic draw brought the charge down to 6v before I saw it... Costly error I won't make again... I hope.

Does your solar monitor give you battery SOC based off a shunt? That is the only accurate way to do it, and you also need to have the right settings in the monitor to get a decent measure of full based on the current to the batteries to determine full. The good thing about wet cells is you can check the specific gravity of them to compare to your monitor to confirm it's accuracy. What controller to you have?



We had the Tripplite 45amp in our Roadtrek as stock and did use it charge two wet cell Trojan 12v batteries for quite a while. I did find it to chronically undercharge them if the they were more than about 20% discharged. Hopefully your solar is set up well and makes up the difference for you. As a point of reference, once we got an accurate charger, we found that the wet cells could take up to 10 hours to get full if they were down to 50% SOC. The Tripplite was limited to a max of 4 hours of full charge by a timer, so that explained the chronic undercharging.
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Old 10-26-2018, 01:19 PM   #6
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If price is any consideration, the Duracell EGC2 are excellent batteries. Made by East Penn, they are available in NC. Sam's Club or Battery plus Bulbs. Crown are the best lead acid but harder to find and many more dollars.
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Old 10-26-2018, 02:27 PM   #7
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I second the Costco batteries.
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Old 10-27-2018, 02:00 AM   #8
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I have had my Deka batteries for 8 years with the Tripplite charger.
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Old 10-27-2018, 07:32 AM   #9
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I have had my Deka batteries for 8 years with the Tripplite charger.

I should have mentioned earlier that the Tripplite issue mentioned is for the Tripplite charger only, not for the entire system in the van. If there is a solar charger that is good at topping the batteries off at least periodically, and/or the driving patterns of the user hit a sweet spot for getting them topped off, the batteries will last well. For many owners the shore charger is really not the primary charging system as they rarely are on shore power.


The good news is that with a battery monitor you will know how well the system is working as a complete unit. Yours appears to be working pretty well to have the batteries last that long. It would be interesting to run a capacity test on them to see how well the capacity has held up over the years, as we rarely get a chance to see that kind of information on older batteries that still in use.
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Old 10-27-2018, 12:30 PM   #10
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I can go 2 days before the batteries get to about 12.1 volts. That is with basic use: lights, water pump, some inverter time. I do have a fridge fan that runs all the time. I should put a monitor in but haven't bothered yet. The van is my daily driver so the batteries get some charge frequently. The standing charge is typically about 12.7 volts, but when I check the specific gravity it shows fully charged.
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