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10-22-2021, 07:57 PM
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#161
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Yay! Off grid wiring complete, next prep and install lithium battery bank.
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11-12-2021, 07:43 PM
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#162
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Next build a discharger to bottom balance the LiFePO4 cells. Discharger consists of four 50W/0.5 ohm power resistors mounted on a heat sink. I’ll reduce each cell voltage to 2.5V.
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11-13-2021, 07:50 PM
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#163
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Bottom balance a lithium cell, it works!
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11-27-2021, 04:46 PM
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#164
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Bottom balance cells for a 24V battery bank takes time (8 x 6 hrs). But the rewards are worth it! Reminds me of an old snickers commercial lol https://youtu.be/WPOZbG7ibEE
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12-11-2021, 03:37 PM
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#165
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Well I’m still in bottom balance mode, adding passive balance to equalize voltage across the cells before charging to 90% capacity.
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01-21-2022, 11:53 AM
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#166
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Juicing the Lithium battery! GS and I are traveling the beautiful state of Arizona next month!
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01-22-2022, 01:39 AM
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#167
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Senior Member
Join Date: Jan 2020
Location: Wyoming
Posts: 417
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Quote:
Originally Posted by campin
Juicing the Lithium battery! GS and I are traveling the beautiful state of Arizona next month!
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Love the big "24V" sticker. Very smart idea.
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01-22-2022, 07:26 PM
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#168
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Thnx.
__________________
Rich
2015 Jay Flight SLX 184BH BAJA Solar
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01-23-2022, 07:09 PM
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#169
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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After 12 hour rest the battery is about 90% SOC. The cell voltages are; 3.325, 3.326, 3.326, 3.327, 3.324, 3.324, 3.326, 3.326. This is my charge limit without a BMS.
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01-26-2022, 10:08 PM
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#170
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Battery in, space is at a premium for the 640W/280AH solar system in a small cubicle but doable! It’ll power the TT (no generator) in the boondocks. ...next complete system wiring and test.
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01-29-2022, 08:19 PM
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#171
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Though the 184BH is solar powered (no generator), I’ll use propane heat when necessary.
...I installed a Mr. Heater (MH9BX), checked for leaks and all’s good. Though the unit has safety features for inside use, I added a shutoff valve and CO detector. It’s very efficient and popular amongst RVers.
As for performance, it cranks in my 20’ TT (on low)! I may have to test it at the North Pole. Lol
I estimate two 20 Lbs propane tanks will last 2 months. The heater is for day use only and a 24V electric blanket for sleeping.
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01-31-2022, 11:41 PM
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#172
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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I’ll finish wiring solar system this week, lithium battery connected and charged (90% SOC), test, boom or bust ; )
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02-01-2022, 09:50 PM
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#173
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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The solar install is complete, ready to test! The 640W/280AH system occupies a 2.5' x 3' space.
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02-03-2022, 11:15 PM
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#174
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Startup today, need to learn the battery monitoring app.
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02-05-2022, 10:20 PM
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#175
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Solar online, adjusted the SCC parameters.
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02-06-2022, 12:11 PM
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#176
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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I’ll turn-on the inverter next. And because the system is somewhat oversized (inverter, converter, SCC, wire), l haven’t noticed any heat dissipation. Of course I’m testing and not in the real world.
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02-06-2022, 04:20 PM
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#177
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Senior Member
Join Date: Jan 2019
Location: Valley
Posts: 272
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I've been reading about hot connections on high power systems between fittings due to insufficient torque. They are all different and I try to check them all.
__________________
2022 37K
2018 Bighorn mistake gone
2017 SoCal teardrop still have
2019 F-150
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02-06-2022, 07:55 PM
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#178
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Quote:
Originally Posted by Semix-Hex
I've been reading about hot connections on high power systems between fittings due to insufficient torque. They are all different and I try to check them all.
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Good point!
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02-07-2022, 10:57 PM
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#179
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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All AC/DC systems are a go. Battery is strong and solar charges quickly.
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02-12-2022, 10:42 PM
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#180
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Senior Member
Join Date: Feb 2020
Location: Prescott
Posts: 250
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Preparing for launch...check electrical, plumbing, load cargo. On the road, I’ll start a new thread detailing solar performance.
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Linear Mode
