Then, all at once, in one day, they grow up, get a good job, leave the house and pay back rent. It's like having twin 2 year olds that seem to never grow up. For the younger generations, It is not likely you will have anything remaining in your possession after 25 years that you paid $4500 for today. I'm 57 now with 2500ah of 12v DIY LFE, it is entirely possible they will outlive me. For a DIY If somebody is already off grid or at least supplementing the grid, they most likely have the skills to crimp a few wires.įor those who's time is "too valuable" to waste building a battery, please stop quoting sports statistics.Īfter 15 years of 100% off grid FLA, hell no, I will never go back. There are a few positive reviewed Amazon LFE in a box, no assembly required, of apparent good quality that you would only have to take into account low temps and modifications to charge profile.100ah $500, 200ah $800.Ī DIY build? 250ish amp hours think a $600ish ballpark. That outfit would still cost way more than a few off the shelf LFE.Įven the high grade gel batteries are fragile in comparison to LFE.
#COSTCO MARINE BATTERY FULL#
If you have an enormous FLA battery bank and manage to use 20%, recharging to full with absorb and float every single day, like a starter battery in a car, they will last quite a while like most car batteries. Let any FLA sit for a week at 30% and you can get a $10 Autozone store card for it. Store your LFE at 30% for a few months and comfortably get 10 to 20% more out of it. Now compare 8 to 15 year expected life span for LFE, and that is to 80% functional capacity.īy the time you add an auto water and high frequency de-sulphate on each battery, you may as well buy LFE even at a 2 to 1 price difference. You would be lucky if you still have 75% FLA capacity after 18 months 50% after 24. 1280Wh Energy Small Size LiFePO4 Battery with Upgraded 100A BMS for RV, Camper, Solar, Trolling Motor. If you manage to forget the water for a week or 2, now it's less than a year. LiTime 12V 100Ah MINI LiFePO4 Lithium Battery, Upgraded Max. Because after that first year there WILL be significant capacity lost. It would take, an absolute minimum, 2 Costco 100ah batteries ($300) to match 1 low to mid range LFE 100ah ($375-$500) over 1 year usage with a 75ah per day drain. The warranty is for shorts, not capacity loss. It measures 10 13/16 in length, 7 1/16 in width, and 7 5/16 in height. As for the MTZ-78 Interstate battery, the CCA is 800, CA 1000, RC 125, and Ah 62. Its length measures 9 7/16, its width measures 7, and its height measures 7 15/16. This implies a Johnson Control battery sold to Wal-Mart may have different internals than a Johnson Controls battery sold to COSTCO or Interstate battery. Their idea of "Deep Cycle" and an actual Deep Cycle battery will not stand up to close comparison.Ĭostco only expects 5% of the people to return their $150 battery. The MTZ-75DT Interstate battery has a CCA, CA, RC, and Ah of 715, 895, 90, and 50. and I will be doing a lot of research before selecting and installing all the components of my solar array, but for the time being, it just seems like this battery can’t be beat for the price.Because gel will beat the crap out of FLA Costco on every metric, unless you only need it to work for 6 months. i think there was a group 24 starting and group 27 Dual Purpose. if I recall correctly I saw 2 marine batteries. I know I have lots more to learn about batteries, etc. What are your collective suggestions as to cost-effective, budget-conscious Group 27 marine/trolling motor/deep cycle batteries rated at or near 100 amp hours Do Costco and/or Walmart currently have Group 27 deep cycle batteries worth looking at If so, model number and price would be appreciated. 10 Sec Morris M52 01-09-2017, 04:32 PM 2 dlevitt Senior Member Join Date: Aug 2007 Location: Aberdeen, NJ Posts: 1,789 Likes: 15 Received 83 Likes on 64 Posts I've seen them, but in limited sizes. And I believe these are actually engineered for both deep cycle and cranking/starting, so I should be fine. You’re not supposed to use “starting” batteries for powering things in your Airstream (you should be using batteries specifically for “deep cycle” use), but for this price, I can’t imagine not going this route, at least for a while. 6 Volt Costco 6 Volt Batteries Deep Cycle Replacement 210 Amp Hours One Year Warranty. I certainly don’t have $1,800 for a multi-6V Trojan set up right now, so why not just spent eighty bucks to “get by” for a while? The cost just can’t be beat and that battery should be 120ah (other deep cycle batteries in that range go for at least $200). 6v, etc.), but it’s hard not to think I might just start with a $79 12V Marine/RV Battery from Costco. There are a lot of things to think about (absorbent glass mat vs. I am starting to think about my battery set up.
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