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Showing Profile Comments 1 to 10 of 31
  1. lewster
    03-26-2022 03:04 PM
    Hi Dan,
    I no longer use Alpha products (for about the last 5 years!). Now it's Sika Flex 221or Sika Flex 721. The choice is yours. The 221 is a better sealant but is not self leveling where the 721 IS self leveling, but not the same product. The 221 also comes in a variety of colors.
  2. Ahroc
    03-22-2022 08:48 PM
    Hi Lewster.
    You have a lot of older posts about sealants that I greatly appreciate.
    Is Alpha Sealants 1021 still your go-to roof sealant?
    Your last post for the product that I could find was in 2017.
    Going to be doing some roof work on my 03 this summer
  3. weismans
    09-01-2021 02:43 PM
    Hi Lew:
    I'm working on the plans to do a lithium upgrade on a 2019 16ft bambi. I like the Progressive Dynamics DIY converter/charger swap out WFCO 8955--> PD4655LIV. I have also heard the victron smart charger is a good choice. I feel comfortable with the PD option as it's DIY friendly option, but not sure how the Victron option would be wired. What are your thought? Thanks!!
  4. TropiCal7
    Hi Lew,

    May I ask your advice? I have a 2017 AS Int'l 30 and am still using lead acid batteries. I live in Asheville and tend to camp in shady areas in the Southeast. I have 2 100W Renogy suitcases that I connect to the batteries with alligator clamps to capture what solar I can. There are a lot of great boondocking sites that I would like to camp in but am limited a bit in duration since they don't all allow generator use. I thought of switching to lithium batteries. Would you have observations about this or suggestions about whether this seems wise and if so what exactly to add?

    Thank you for your time and I do understand if you get too many of these type questions to respond.

  5. Jeff2j
    06-27-2021 03:35 PM
    Hello Lew,
    I'm checking to see if you would like an Airstream upgrade job. We have recently purchased a 2016 Airstream Sport Bambi. We are looking to install ~300 watts of solar on the roof and set-up to add a suitcase solar panel, 300 or 400 ah of lithium batteries (preferably in the coach for cold weather use), Multiplus inverter/charger (3000 watts), Easy Start/Soft start AC kit, tow vehicle alternator charger kit and whatever else you feel is important. We are in the Midwest in Cincinnati and could bring the trailer to Florida. Thanks!
  6. lewster
    02-11-2021 06:32 AM
    Hi Brad,

    Please get with me at for a complete discussion of your issue.
  7. 4DSX4
    02-10-2021 09:24 AM
    Hi Lew,
    We purchased a 2017 AI GT unit a couple months ago - more or less on a "as is where is" basis
    We believe the original coach batteries are shot from a number of complete discharges
    and likely the standard issue plastic 100W solar panel is nearing the end of its life
    We would like to update these to give enough battery and solar to allow a couple days boondocking (of course we have the generator if we will stop longer)
    Could you advise the a battery/solar set-up that could make this happen?
    We will be FL Mar/Apr/May (St Pete Beach area)
  8. jakupko
    02-04-2021 09:23 AM
    Thanks for responding Lew. The dimensions are close: 24T is 11.13 long, 6.6 wide, 9.25 high and the 4CT is 10.28 long, 7.06 wide, and 9.92 high. I know I need to pull the 24T's and measure and will do when the weather improves. If they would do I need to change any of the systems? Thanks for your advice. John
  9. jakupko
    02-03-2021 02:35 PM
    Hello Lew, I'm a new member to the forum and after reading a lot of posts I think you can answer my question about replacing the house batteries in my stock 2018 Tommy Bahama Grand Touring Interstate coach. I would like to replace the Lifeline GPL-24T's with Lifeline GPL-4CT's and I'm trying to find out if I need to change out any of standard equipment (Magnum Inverter/charger, Sun Explorer Charger Controller, Power Control System, etc) to do this and will they fit in the battery trays without modification? At this time I'm just trying to gain some additional AMP hours. Thanks Lew
  10. lewster
    11-24-2020 07:01 AM
    Hi Baruch,

    You can get up to 300 A/H with a par of Lifeline GPL-6CT batteries. The only problem is where to place them in your 2005 Airstream coach. I have done a couple of your style Interstates and we placed the batteries below your couch. As for panels, I would use the Zamp 90's available from AM Solar, along with a 100/30 Victron solar controller and their BMV-712 battery monitor. Please let me know if you need any more information about this great stuff!

About Me

  • About lewster
    Trailer #1
    Vintage Kin Owner
    About My Tow Vehicle
    2007 Sprinter 2500
  • Signature
    Solar Tech Energy Systems, Inc.
    Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries


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  • Last Activity: Today 12:04 PM
  • Join Date: 12-07-2005
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