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 > Your search for posts made by 'S Davis' found 111 matches.

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  Subject Author Date Posted Forum
RE: Lithium cost keep dropping!

Just got 12 EVE 280ah cells, had them in six working days from order. Building three 280ah packs. EVE 280ah cells
S Davis 10/08/21 01:12pm Tech Issues
RE: How to build a LiFePo4 battery bank.

My 12 EVE 280ah cells showed up today, building three 12v 280ah packs. I am going to run two in the truck with a spare on the shelf. EVE 280ah
S Davis 10/04/21 09:46pm Do It Yourself Modifications and Upgrades (DIY)
RE: Battle Born BB8D

Anyone have a reliable source for good cells and BMS? https://docantech.en.alibaba.com Ask for Jenny Wu. Shipping top quality EVE280 from Houston TX. I use this BMS. Limited to 120 amps but very solid reliability. https://overkillsolar.com/product/bms-120a-4s-lifepo4/ Ordered 12 cells yesterday, should have them in a week or two.
S Davis 09/26/21 07:55pm Tech Issues
RE: Battle Born BB8D

I will be using the 4/0 DLO cable they sent by mistake rated at 405amps for each 280ah battery.
S Davis 09/26/21 03:27pm Tech Issues
RE: Battle Born BB8D

I have decided to build three 280ah lifeP04 batteries, two installed in the truck and one that I can swap between the commercial cap and camper.
S Davis 09/26/21 03:16pm Tech Issues
RE: Battle Born BB8D

What possibly are you going to use to draw over 200a. My microwave draws 148a, 12c coffee pot 84a, air conditioner 150a+. Now if I forget that I'm boondocking and turn the microwave & coffee pot on and other misc items at the same time then it will be 250a +. Hi Itnerant1, My microwave draws 176 amps. My air conditioner, on a hot day draws up to 160 amps. It is not a problem as my inverter tops out at 250 amps (3000 watts), so I can't run 2 major items at once. That was the point I guess I was trying to say without actually coming out and saying it. The inverter is going to be the limiting factor and the op said a 2,800w inverter. Heck my batteries will will do 3c continously or 1500a, doesn't do much good if the inverter and other components won't allow it though. Unless the op might stack two VFXR 2800 watt Outback inverters.
S Davis 09/26/21 03:14pm Tech Issues
RE: How to build a LiFePo4 battery bank.

Did you get your cells? Any progress?
S Davis 09/26/21 02:39pm Do It Yourself Modifications and Upgrades (DIY)
RE: Mini Split AC

I don’t believe the compressor vibration mounts would survive mounting the outdoor unit horizontal, at least not the Mitsubishi units I install.
S Davis 09/22/21 05:55pm Tech Issues
RE: Battle Born BB8D

Anyone have a reliable source for good cells and BMS?
S Davis 09/21/21 11:37pm Tech Issues
RE: Battle Born BB8D

For what it’s worth… I recently built 6, 100AH Lithium batteries for $1200 and probably 15 hours of my time. Paid $900 for the cells, $200 for 6 BMSs, and $100 in cables and connectors. Any pictures of how they came out, what did you use to house the cells?
S Davis 09/21/21 07:17pm Tech Issues
RE: Battle Born BB8D

I would try not to go more than four in parallel. Two in parallel would be my preference. I have room for two three battery banks so three in parallel.
S Davis 09/21/21 07:10pm Tech Issues
RE: Battle Born BB8D

What possibly are you going to use to draw over 200a. My microwave draws 148a, 12c coffee pot 84a, air conditioner 150a+. Now if I forget that I'm boondocking and turn the microwave & coffee pot on and other misc items at the same time then it will be 250a +. This is mounted in my truck and will power a commercial cap for work during the week and power the camper on the weekends. I have work tools that will be 250 amps plus.
S Davis 09/21/21 07:07pm Tech Issues
RE: Battle Born BB8D

Look at Lifeblue batteries also and compare $$. They have 100, 200, 300ah batteries and if cold temp is an issue they have batteries with warmers in them. The one I thing I don’t like about Lifeblue is their max draw is 150 amps continuous and 200 amp for 30 minutes on their 200ah and 300ah batteries. So I would need to have two to run my 2800watt inverter at full draw where Battle Born is 300amps continuous and 500amps surge for 30 seconds on one of their 270ah. If you are planning on running two in parallel then the max draw adds. So it would be 300A continuous and 400A for 30 minutes wth two Lifeblue in parallel.. That should be more than enough for running your 2800W inverter. And yes, battleborn is over priced. The price of LiFePO4 cells has plummeted in the last year, yet BB prices have not. I am planning two banks that can be charged or used independently and would like to be able to power the inverter with just one bank, so I guess going with six 100ah is probably the way I will go as this would give me a max of 300amp draw per bank. Also I could have multiple battery failures and not be dead in the water. It looks like the lifeblue and battle born are about the same price on the 100ah.
S Davis 09/21/21 06:44pm Tech Issues
RE: Battle Born BB8D

If I understand you, you plan to mix batteries with different chemistry in the bank powering your inverter. This is a no-no. Either go all one or all the other. They should all also be of the same age, and they need to all be at the same state of charge when you put them together. No mixing just trying to decide on one battery 270-300ah per bank for a total of two or three 100ah per bank for a total of six.
S Davis 09/21/21 05:48pm Tech Issues
RE: Battle Born BB8D

Look at Lifeblue batteries also and compare $$. They have 100, 200, 300ah batteries and if cold temp is an issue they have batteries with warmers in them. The one I thing I don’t like about Lifeblue is their max draw is 150 amps continuous and 200 amp for 30 minutes on their 200ah and 300ah batteries. So I would need to have two to run my 2800watt inverter at full draw where Battle Born is 300amps continuous and 500amps surge for 30 seconds on one of their 270ah.
S Davis 09/21/21 05:35pm Tech Issues
Battle Born BB8D

I have been trying to figure out what batteries to use on a 2800 watt Outback inverter, I was planning six Lifeline GPL 30HT for a total of 900ah. I started looking a Battle born and think I have decided to go with LiFeP04 batteries, I basically have room for two 8Ds. This would give me 540ah with two of Battle Borns 270ah BB8D batteries. Probably buy one and see how it works and then another at a later date. Only thing I am worried about is redundancy, I could use six of their 100ah. Opinions?
S Davis 09/21/21 10:37am Tech Issues
RE: What did you do to your truck today?

Got the wire bungs through the floor for the alternator charge circuit, 12volt 120amp feed to the truck bed as well as the 50 amp and 30 amp shore power inlet and outlet. I mounted the enclosure to the four hard points for the rear seats and seat belts, started installing the three 20 amp 120v outlets on the front and both sides of the enclosure. Batteries soon. Inverter install
S Davis 09/19/21 01:04pm Truck Campers
RE: Battery Question

kenkorona, No one has mentioned the Achilles heel of all but one Li formulation. They unsuited to use in cool weather. So anyone north of say Nebraska may have heating issues. It's fine if you full time, but few folks do that in a Truck Camper. Fortunately there is a solution that is excellent. For more information on solar surf here: https://freecampsites.net/adding-solar/ It looks like Battleborn has a battery heater now that can be controlled with a thermostat or manually. I am looking at 900ah in lifeline GPL30HTs or 450ah usable for my inverter install because I work off grid here in the NW islands and Cascade’s and can get into pretty cold temperatures. I will have to look at Battleborn now.
S Davis 09/18/21 12:20pm Truck Campers
RE: 2023 GM HD 505hp/1085tq

But it’s fun at the track;-) 2009 drag racing
S Davis 09/16/21 05:05pm Tow Vehicles
RE: Inverter AGM questions

Made a little more progress, I received the 1/0 DLO cable and was able to run a 1/0 negative from under the center console, drilled the holes through the truck floor for the wiring for the 120v 50 amp shore power, 30 amp outlet from inverter, charge line from truck alternator and to lift gate plug mounted in the bed of the truck. I got the enclosure mounted in the back seat area, it bolts to the mounts for the rear seats and seat belts. Still have to finish covering the top of the enclosure, ordering batteries soon now that I have a spot to put them. Inverter enclosure install
S Davis 09/16/21 11:46am Tech Issues
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