Overview
The objective was to engineer a clean, reliable, off-grid AC/DC power system inside the RV basement to run a dedicated mobile office line and supply power back to a dedicated home office receptacle during utility outages or off-grid operation.
System Specifications & Core Components
Energy Storage: LiTime 12V 165Ah LiFePO4 Lithium Battery Bank (monitored via Bluetooth BMS).
Solar Generation: 400W PV array managed by a Rich Solar 40A MPPT Charge Controller.
AC Inverter: LiTime 2000W Pure Sine Wave Inverter with an elevated base mounting and remote control panel.
AC Distribution & Pass-Through:
Hardwired Romex output from the inverter feeding an interior dual-outlet box inside the RV mobile office area.
Wall-mounted inverter remote control interface installed directly adjacent to the interior outlet.
Heavy-duty 12-gauge AC pass-through cable routed through a strain-relieved exterior hatch.
Exterior weather-resistant outlet box with an extra-duty, while-in-use cover mounted to the siding.
Feeds an exterior male wall inlet leading to a dedicated interior home office standard wall outlet.
Chassis Grounding: Direct chassis ground connection from the inverter grounding lug, routed through the floor penetration, and secured to the RV tongue frame via a dedicated cable clamp.
Execution & Diagnostic Highlights
Cold-Start & Load Testing:
Conducted initial inverter self-test under zero load to verify green "Power On" status and normal boot sequence.
Executed real-world load tests using an AC fan and 12V interior LED lighting, monitoring live current draw through the Bluetooth BMS app (ranging from approx 18.8W idle fan load up to approx 65.7W with combined lighting).
Verified MPPT charge controller response under heavy overcast pre-storm daylight conditions, confirming net zero drain at standby (0.0A} / 0.0W).
Grounding & Open Ground Diagnosis:
Corrected initial visual ambiguity regarding the chassis ground path by confirming the physical connection from the inverter lug through the floor to the steel tongue clamp.
Diagnosed the cause of the "Open Ground" reading on the 3-prong outlet tester, identifying it as a standard characteristic of floating (unbonded) neutral off-grid inverters.
Established the resolution: utilizing a standard Neutral-Ground Bonding Plug in one of the inverter's three front receptacles to bridge N-G potential and satisfy sensitive tester/GFCI detection circuits.
Weatherproofing & Build Quality:
Sealed exterior floor penetrations and cable pass-throughs against road spray and weather.
Secured all exterior connections inside an extra-duty wet-location box enclosure for seamless operation during severe weather events.
Final Assessment
Build Quality: Excellent. Clean wire routing, elevated inverter mount, proper strain relief, and robust exterior weatherproofing.
System Capacity: Exceptional runtime reserves (33 to 116+ hours depending on load profile) supported by a 400W solar harvest setup.
Status: Fully Operational & Tested. HIGHLY RECOMMEND!!
My like new group 24 100ah is great. Looks brand new. Should last for years.
Using 2 batteries for powering the trolling motor on my boat. Using 1 battery for electronics, pumps and lights. All batteries are performing perfectly. A huge improvement from my previous AGM batteries.
So far I haven’t used this for the intended purpose. I bought this 48v 100ah battery to use in my golf cart. I bought it replace the 6 - 8v batteries. So far though, all I’ve done so far is run a large 48v Victron inverter. It’s been spectacular in all respects. I really like that I can turn the output off without putting the battery to sleep. I did have to send the first battery charger back because it wouldn’t wake the battery up. I then went and bought LiTime battery charger.I turned the battery completely off, the LiTime charger does indeed turn it back on without any trouble once I figured out the sequence.
This is our 2nd LiTime battery. The first one went in our RV. That battery has also worked perfectly and was a great improvement over the original AGM battery. (Half the weight and over 2 times the power.
Huge up grade from the OEM setup!
I replaced two LiTime group 31 batteries with two xtra mini 100 AH batteries. I was not sure if they could power the trolling motor the same. But so far so good. Bought me tons of space in the bow of my boat as now the two batteries fit in a battery compartment for one group 31 battery. Outstanding
I haven’t put the battery to work, camping, yet but with the great BMS I’ve been prepping to best understand how many Ah are used by lights, water pump, refrigerator so I can best dry camp without issue. The mini compact 320 Ah battery fit in my standard 5th Wheel compartment. Stay tuned.
I’m extremely pleased with the golf cart battery I purchased from you. After years of frustration with Allied Battery — including multiple DOA units, terrible support, and unreliable performance — your battery was a breath of fresh air.
It was well priced, plugged in and charged easily, connected perfectly via the Bluetooth app, and worked beautifully right out of the box. No hassle, no issues — just excellent performance. Thank you for a great product and experience!
It was attractively priced, plugged in and charged easily, connected perfectly via the Bluetooth app, and just worked beautifully right away. Thank you for a great product and experience!
Replaced old led acid battery on my dump trailer with the Lintime trolling 100ah battery and it last a lot longer.
I can’t believe how far batteries have come. This is my first lithium battery I purchased for my kayak. I couldn’t be happier.
Batteries shipped really fast. I a tech question about my old 3 bank charger that was answered within 12hrs and decided to purchase a new 4 bank LiTime to elevate any worry I had.
Great batteries and to keep me on the big water when I need them!
The new battery i bought had my trolling motor on it for a full day and still had only spent 20% of stored power. I have 4 Li batteries and they all are great!
This is the first lithium battery we have purchased to put in our 25 foot Travel Trailer. So far everything has went great. Even considering a 2nd battery the same to piggy back
I was tired of buying lead acid batteries every 2 years and then they only last 8 hours before crapping out. LiTime 12V 165Ah 1200 CCA Dual Purpose Marine Lithium Battery | Bluetooth & Auto Heating last 3 days running 3 graphs, livewell pumps, and my Xtreme Bait Tank! You're missing out if you don't buy these great batteries!!!
I bought a LiTime 2000 watt sine wave inverter to go with my 230 amp battery which I use for emergency backup. I have it connected to my whole house transfer switch to provide immediate back up for essential back-up until I fire up the generator to power multiple circuits. This provides very clean power immediately when needed.
Swapped all my trolling motor batteries out at the beginning of the year. Then 2 more for my other boat, now I'm up to 6 with my dedicated graph battery. I love being able to see my batteries on my phone.
Only been out on the water once since getting the trolling motor battery but was very impressed by how well this battery holds a charge.
Just over three hours on the water with a slight breeze and minor chop on the water, and the trolling motor was running 95% of the time and the battery meter still read full charge when I got home.
I only wish I had spent the extra $30 to get the Bluetooth version.
I couldn’t justify having the technology as I have never needed it in the past 30 years of fishing, so why would I need it now. 🤦🏻♂️🤷🏻♂️
So. What was the first thing I did after watching the video on the setup and first charge instructions …. ? …. I went to the auto parts store and bought a digital multi meter….and spent $34. 🤦🏻♂️🤭😉
Switched out an old lead acid starter battery for my boat with this LiTime 165ah beauty. The lead acid battery was so heavy i had to ask my neighbor to help me lift it out. I was able to put in the LiTime and use the bluetooth to check state of charge. Plugged in the boat to fully charge and the motor started up no issues..I had been back & forth trying to strat it using the old battery with no success and decided to get rid of it as it would not hold a charge. Glad I chose a LiTime since i now have BMS and an App to monitor it with.
I have installed three 320 ah mini batteries in my RV. So far they are performing as they should and I am pleased with the purchase.
Works great. Fast shipping easy to work with.
I purchased a 16V LiTime 100 AH battery to run
One Garmin Ultra 2 16” and two LOWRANCE 9”
fish finders.
I wasn’t sure if it would be enough amps to run
three units.
I was wrong. The battery worked flawlessly.
I fished two days, 10 hrs each day.
According to the Bluetooth, the battery still had
63 amp hours left.
I was surprised. It was well worth the price.
Would I recommend this battery?
YES!!!
Installed a pair of these in my 22 foot SeaArk BXT 220 for my Power Pole trolling motor. Ran it for 4+ hours between level 5 and 15. It only used 2% of charge!
I have 2x100 Ah in a 24 volt configurstion for my trolling motor. They last a long time and power the motor so much better! So light, just wonderful batteries.
I also have 1x100Ah mini for my electronics on same boat. So small and light I can mount it very easily!
Love the Bluetooth interface on my smart phone, tells me exactly the state the batteries are in, charging, discharging and percentage of charge.
