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05-01-2022, 08:24 PM
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#29
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Junior Member
Join Date: Sep 2018
Posts: 23
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Consider BattleBorn
They are pricey but are a drop in replacement for LA. They have different charge requirements compared to others. You can also get a Li-Bim instead of the DC charger. It charges for about 15 minutes and shuts off for 20 to protect your alternator. Give them a call - they are very helpful.
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05-02-2022, 05:37 AM
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#30
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Senior Member
Join Date: Nov 2006
Location: Western NY
Posts: 6,143
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Quote:
Originally Posted by Clark clan
They are pricey but are a drop in replacement for LA. They have different charge requirements compared to others. You can also get a Li-Bim instead of the DC charger. It charges for about 15 minutes and shuts off for 20 to protect your alternator. Give them a call - they are very helpful.
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IMO the phrase "Drop In" should be used / taken with some caution by those considering LFP and educate themselves.
https://marinehowto.com/drop-in-life...ated-consumer/
__________________
Don & Marge
'13 Newmar Ventana 3433 - '14 CR-V TOAD
'03 Winnebago Adventurer 31Y - SOLD
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05-02-2022, 08:35 AM
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#31
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Registered User
Join Date: Aug 2017
Posts: 746
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Quote:
Originally Posted by Soppy
The 170 watt panel will give you around 60 to 70 amp hrs per day in full sun. That will be sufficient to charge 1 battery taken down to 50% of its capacity. If your weather is cloudy your charging will be even less. I would get more solar before more batteries , unless you plan on running the generator daily to charge the batteries.
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I put 200w of solar on a year plus ago. I find it worthless. I need it for the winter to run furnace. The short days and low sun angle make the solar worthless when I want it.
Before our last couple months trip, which went south and had a few cold nights and the rest down below freezing, my 2 new 6 v golf cart batteries did the job. I replaced the OEM crap 12 v deep cycle about a year ago and the replacements turned out to be crap too. I bought good 6 v batteries this time.
I have no interest in AGM or Li batteries. AGM batteries are good for boats and airplanes but I don’t need them. Li batteries are out of my price range. The only inverter I use is a 100 w one to run my CPAP…which is a Resmed Mini and uses little power: no water added.
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05-02-2022, 08:41 AM
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#32
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Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: Oct 2015
Posts: 1,718
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Quote:
Originally Posted by twinboat
Yes they will work, but if your only charging them to 70% and you need to stop discharging above 10%, you just spent a lot of $ on less capacity then your original lead acid batteries.
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Agreed, but if they charge to 95% with current system, you havent lost much capacity.
__________________
Paul J Stough Iowa
2005 Winnebago Voyage 38J
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05-02-2022, 08:57 AM
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#33
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Registered User
Join Date: Jan 2021
Posts: 2,184
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Quote:
Originally Posted by LarryinID
I put 200w of solar on a year plus ago. I find it worthless. I need it for the winter to run furnace. The short days and low sun angle make the solar worthless when I want it.
Before our last couple months trip, which went south and had a few cold nights and the rest down below freezing, my 2 new 6 v golf cart batteries did the job. I replaced the OEM crap 12 v deep cycle about a year ago and the replacements turned out to be crap too. I bought good 6 v batteries this time.
I have no interest in AGM or Li batteries. AGM batteries are good for boats and airplanes but I don’t need them. Li batteries are out of my price range. The only inverter I use is a 100 w one to run my CPAP…which is a Resmed Mini and uses little power: no water added.
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Sometimes folks put together systems that are ill suited to meet their needs. Understanding how solar panels will perform in a variety of conditions, knowing your energy requirements and determining the necessary battery capacity are 3 critical steps in the process.
You can’t blame the components.
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05-02-2022, 09:09 AM
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#34
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Registered User
Join Date: Jan 2021
Posts: 2,184
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Quote:
Originally Posted by PJStough
Agreed, but it they charge to 95% with current system, you havent lost much capacity.
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Indeed. It’s ridiculously easy to charge lithium batteries to 90-100%. I’ve been doing it with the AGM setting, but mostly with solar. Another benefit is that we won’t kill our lithium batteries if we operate them between 10-70%, or 20-80%, or never fully charge them. Try that with a wet cell.
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05-02-2022, 09:14 AM
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#35
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Senior Member
Alpine Owners Club
Join Date: Nov 2015
Location: Lake Havasu City, AZ
Posts: 3,007
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Quote:
Originally Posted by Kid Gloves
Indeed. It’s ridiculously easy to charge lithium batteries to 90-100%. I’ve been doing it with the AGM setting, but mostly with solar. Another benefit is that we won’t kill our lithium batteries if we operate them between 10-70%, or 20-80%, or never fully charge them. Try that with a wet cell.
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You're preaching to the "They're too expensive" crowd my friend.... The facts won't matter on the internet it's all about the "Perception"
__________________
Paul & Jean
2001 Alpine 36FDDS (74291)-3900W Solar, 13,440Wh (525Ah @24V) LiFePO4
2019 Jeep Grand Cherokee Trailhawk (Hemi)
2006 Alpenlite 32RL - Sold
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05-02-2022, 09:36 AM
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#36
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Registered User
Join Date: Jan 2021
Posts: 2,184
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Quote:
Originally Posted by paul65k
You're preaching to the "They're too expensive" crowd my friend.... The facts won't matter on the internet it's all about the "Perception"
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There is an up front premium. However, if we can cut through the misinformation, people will be able to make an educated decision. It’s an ongoing challenge because people want to hear what they already believe. Once a post is made that supports a misguided opinion, the debate is over.
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05-02-2022, 09:49 AM
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#37
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Senior Member
Join Date: Apr 2003
Location: Kelowna, B.C. Canada
Posts: 3,025
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As I said at the beginning of the thread; I have four 225AH GC6's and two 170W solar panels. This weekend, I ran the furnace all night at 65 degrees, ambient temps were just around 40 deg F. overnight and around 55 - 60 deg. F during the day. I also had the fridge, water pump, some lights and the stereo running as well as charging our phones, etc. According to my Victron Smart Shunt, Friday evening I used 33 AH's and the readout was showing 95%, Saturday morning was overcast so I didn't expect much from the solar but the batteries showed a full charge by 10:30am. On Sunday morning, the readouts showed 94% and with full sun, the batteries were showing full charge by 9:00am.
I'm satisfied with the performance of my set up given my usage. I believe in the superiority of Lithium batteries but since my trailer came with two brand new GC-6's, it was far, far cheaper to add two more than do buy 200 - 300AH's of Lithium. My last GC-6's were still running strong when I sold the RV at 6 years, when these ones are done, I'll probably upgrade to Li.
Dave
__________________
2022 Outdoors RV 25RDS, 2022 F350 dually, 6.7PSD, 10 spd, 3.55's
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05-02-2022, 09:51 AM
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#38
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Senior Member
Join Date: Apr 2003
Location: Kelowna, B.C. Canada
Posts: 3,025
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Quote:
Originally Posted by Kid Gloves
There is an up front premium. However, if we can cut through the misinformation, people will be able to make an educated decision. It’s an ongoing challenge because people want to hear what they already believe. Once a post is made that supports a misguided opinion, the debate is over.
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Yep; it's called Confirmation Bias and it's rampant......no different than the guys asking whether anyone tows a 30', 10,000 lb trailer with their half ton hoping for a positive response to validate the decision they want to make...
Dave
__________________
2022 Outdoors RV 25RDS, 2022 F350 dually, 6.7PSD, 10 spd, 3.55's
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05-02-2022, 10:40 AM
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#39
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Registered User
Join Date: Jan 2021
Posts: 2,184
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Quote:
Originally Posted by Dave Pelletier
Yep; it's called Confirmation Bias and it's rampant......no different than the guys asking whether anyone tows a 30', 10,000 lb trailer with their half ton hoping for a positive response to validate the decision they want to make...
Dave
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Or, in some cases, to validate a decision that’s already been made.
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05-02-2022, 10:44 AM
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#40
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Senior Member
Join Date: Apr 2003
Location: Kelowna, B.C. Canada
Posts: 3,025
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Quote:
Originally Posted by Kid Gloves
Or, in some cases, to validate a decision that’s already been made.
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absolutely.
__________________
2022 Outdoors RV 25RDS, 2022 F350 dually, 6.7PSD, 10 spd, 3.55's
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05-02-2022, 11:51 AM
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#41
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Senior Member
Join Date: Oct 2021
Location: SW WA State
Posts: 197
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Quote:
Originally Posted by Dave Pelletier
As I said at the beginning of the thread; I have four 225AH GC6's and two 170W solar panels. ...snip...
I'm satisfied with the performance of my set up given my usage. I believe in the superiority of Lithium batteries but since my trailer came with two brand new GC-6's, it was far, far cheaper to add two more than do buy 200 - 300AH's of Lithium. My last GC-6's were still running strong when I sold the RV at 6 years, when these ones are done, I'll probably upgrade to Li.
Dave
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Exactly my situation and experience, albeit 400 watts I installed. We were traveling, down to 24 overnight and clear. But I was at 100% within a few hours. I WILL add more solar to my roof, and may build a portable. Not because I need it now, but for October, camping under trees,and for when the DW or grandkids leave the lights or TV on all day.
I expect I will be satisfied with 4 GC-2 6 volts. But getting 400 amps of lithium WILL allow for more electric use without needing to run my generator. And that's my goal, cut down on MY noise emissions.
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05-02-2022, 01:01 PM
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#42
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Member
Join Date: Nov 2019
Posts: 36
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I ran my furnace once...in full sunshine...hated it.
__________________
'97 Bounder, 11k
Elko NV 6,163
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