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Forum
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RE: Switch to LIFePO4?
I have some LiFePo4's on order. Here is what Trimetric told me:
We have a link below to the TM-2025's User Manual. In it you'll find, on pages 6 & 7, a description of all the 'P' parameters.
For Lithium LFP batteries, the changes needed are as follows:
P1 - 14.4 Volts.
P2 - 2% of P3 (battery bank capacity)
P3 - Battery Bank capacity in Amp-hrs
P7 - L3
P10 - 98%
P14 - 0.00 hrs
http://www.bogartengineering.com/wp-content/uploads/docs/TM-2025%20Users%20Instructions062017.pdf
I also talked to PD re my PD4635 charger/converter. They said I should keep the boost mode button on.
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steveh27
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07/01/19 05:44am |
Tech Issues
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RE: Change to Lithium-ion?
The link shows 100ah. Op is gone.
Yes it does, but as my earlier post stated, I contacted them via email and they constructed 2 to meet my batt box size requirements and give 200AH.
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steveh27
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06/28/19 10:38am |
Tech Issues
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RE: Change to Lithium-ion?
I wish I had room for 2 gc batteries, but I do not even have room for one, too high. The one I have on order comes with the BMS. I was thinking of buying Walmart's 135ah agm for $400, but this 200 ah lifepo should give me much more usable ahs.
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steveh27
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06/28/19 04:58am |
Tech Issues
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RE: Change to Lithium-ion?
Those chinese batteries sure look interesting. Interesting is a good word. I don't know what the cable size is, and I guess you have to install your own connectors.
They're including 2 terminals with 4 connections each. Also sent a wiring diagram.
I'll post how the hookup goes when I get it.
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steveh27
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06/27/19 01:32pm |
Tech Issues
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RE: Change to Lithium-ion?
I am awaiting delivery of 200 ah of these batteries for my Class B. They come with BMS and mounting terminals.
https://www.amazon.com/3-2V100Ah-Lithium-Power-car-Radio-3-2V100AH/dp/B07LBFQGKX/ref=sr_1_1_sspa?crid=3QDVAKORNTUG0&keywords=lithium%2Brv%2Bbattery%2B200ah&qid=1560184054&s=gateway&sprefix=lithium%2Brv%2Csporting%2C175&sr=8-1-spons&th=1
They said all my wiring and charging systems will work. I have a PD4635.
I only have room for 1 lead acid battery of 105ah. So I should have much more amps to use 80% of 200 = 160, vs 50% 0f 105= 52. They're supposed to charge faster and better so I will not be adding to my 120 watt portable solar panel. My only concern is Using it in the 1st week of December can be cold. This is their reply:
Our LiFePO4 battery working temperature is -20 to +60 Degree C for discharging, and 0 to 60 Degree C for charging, -10 to +45 Degree C for stock. And we have done testing at -20 Degree C, the result should make sure battery have 60% more capacity under this condition.
I hope my Trimetric meter will give good info on it's status.
I emailed with the factory to meet my small battery size for 200ah and they came up with a set. They had me buy through Alibaba (a first) for $1,400.
I spend at least 30 days snowbirding in FLA without hookups and some here in Michigan.
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steveh27
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06/27/19 06:15am |
Tech Issues
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RE: Home monitoring system?
I do not have a smart phone, saves a lot of money but means most of those discussed things do me no good. But I do have a great neighbor who gets my daily mail & waters the plants. I leave the temp at 52 and the water heater on pilot.
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steveh27
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06/21/19 06:12am |
Technology Corner
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RE: LiFePO4 Battery
I went with these:
https://www.amazon.com/3-2V100Ah-Lithium-Power-car-Radio-3-2V100AH/dp/B07LBFQGKX/ref=sr_1_1_sspa?crid=3QDVAKORNTUG0&keywords=lithium%2Brv%2Bbattery%2B200ah&qid=1560184054&s=gateway&sprefix=lithium%2Brv%2Csporting%2C175&sr=8-1-spons&th=1
I emailed with the factory to meet my small battery size for 200ah and they came up with a set. They had me buy through Alibaba (a first) for $1,400.
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steveh27
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06/20/19 05:25am |
Tech Issues
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LiFePO4 Battery
I just ordered 200 ah of these batteries for my Class B. They said all my wiring and charging systems will work. I only have room for 1 lead acid battery of 105ah. So I should have much more amps to use 80% of 200 = 160, vs 50% 0f 105= 52. I will not drain them that much. Usually kept the lead acid above 70% SOC so will do the same with the lithium. They're supposed to charge faster and better so I will not be adding to my 120 watt portable solar panel. My only concern is Using it in the 1st week of December can be cold. They may not charge much below freezing.
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steveh27
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06/19/19 01:51pm |
Tech Issues
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RE: DIY MC-4 Connectors- 2nd Photo Added
I use SAE connectors.
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steveh27
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06/15/19 05:22am |
Tech Issues
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RE: FL Keys in June
Marathon has a nice beach. The Mel Fisher Treasure museum in Key West is a must.
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steveh27
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06/12/19 06:44am |
RV Parks, Campgrounds and Attractions
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RE: Marine/RV Battery
I wish I had room for 2 6v gc's. My battery box is 15"x8.25"x9.5" high. I have an ac delco 29mf. May try this one:
https://www.walmart.com/ip/VMAX-XTR31-135-Golf-Cart-Battery-AGM-Group-31-Deep-Cycle-Battery-12V-135Ah/387091324
A 6v golf cart battery has the same footprint as a Group 24 12v battery. It's just a little taller.
That's why you can fit two of them on most trailer's A-frames.
But 1 let alone 2 will not fit in my battery box under the side entrance step to my Class B.
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steveh27
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06/09/19 05:43am |
Tech Issues
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RE: Marine/RV Battery
I wish I had room for 2 6v gc's. My battery box is 15"x8.25"x9.5" high. I have an ac delco 29mf. May try this one:
https://www.walmart.com/ip/VMAX-XTR31-135-Golf-Cart-Battery-AGM-Group-31-Deep-Cycle-Battery-12V-135Ah/387091324
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steveh27
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06/08/19 04:43am |
Tech Issues
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RE: Satellite 119 with DISH seems to cut in and out on motorhome
I've been losing all signals a couple days a week at my house for a week or so. This is not during a storm. I have the 211k box.
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steveh27
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05/29/19 11:18am |
Technology Corner
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RE: FIXED Dometic RM 2310 needs repair to run on propane
FIXED fridge!!!
I took it to an rv shop & they would not touch it due to liability, but they did explain how it was secured. The bottom of the flue has 2 wings that a part in the burner box turns on & locks all into place. That part was still decent though rusty. One of the flue wings had rusted away & the other was weak. So the burner box had dropped away from the flue and was moving. The push rods from the interior buttons were not lined up.
I was able to get that part to latch onto the 1 flue wing and turn it to latch into place. But it is weak & would not hold up to the interior buttons pushing. I mounted a 90 degree bracket (which I had to open a bit) to the burner box with a bolt and then screw into the bottom. It is very solid and on the 1st try the piezo lighter lit the propane burner - sweet!
I would have replaced it with the new model, but with their electronic controls running on propane would draw 1.5 - 2.5 amps, way too much for my boondocking. This rm2310 draws noting on propane.
These pics are with the burner box cover removed. It is back on now.
This shows the part that locks it in place.
https://www.michigan-sportsman.com/forum/media/img_2619-1.121049/full
This shows the bracket securing it:
https://www.michigan-sportsman.com/forum/media/img_2621-1.121051/full
Hope it lasts.
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steveh27
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05/26/19 06:16am |
Tech Issues
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RE: Removable shore power cord inlet
I also went to the Smart Plug & really like the upgrade.
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steveh27
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05/23/19 04:41am |
Do It Yourself Modifications and Upgrades (DIY)
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RE: Deep Cycle 12V Batteries
TY for the reply. I wish I had room for a pair of GC batteries.
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steveh27
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05/14/19 01:48pm |
Tech Issues
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RE: Deep Cycle 12V Batteries
wa8yxm,
I've been doing this for 20 years. Obviously I need to know if it will fit the batt box. My question was is there something about this battery that precludes just using one? The web sites I found all have them in sets of 4.
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steveh27
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05/13/19 07:44am |
Tech Issues
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RE: Deep Cycle 12V Batteries
I only have room for 1 12 v battery. Will these work for me? Their data sheet keeps saying a bank of 4 batteries.
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steveh27
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05/13/19 05:08am |
Tech Issues
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RE: Generator etiquette
The WMA's in FLA I stayed at shut them down at 8pm. Had to go tell that to 1 guy & then he followed the time rules.
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steveh27
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05/13/19 04:50am |
Beginning RVing
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RE: Camping season
I've already camped in my Class B 63 days this year.
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steveh27
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05/09/19 04:16am |
General RVing Issues
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