Settle in and enjoy the moment, knowing your battery can handle extra days and cold mornings. And with Alpha 1 Pro's battery management system and smartphone monitoring, you always know how much power you have to keep the adventure going. 1-800-940-8924 to order Rich Solar battery part number RS74VR or order online at etrailer.com. Free expert support on all Rich Solar products. Great prices and Fastest Shipping for Rich Solar Alpha 1 Pro Lithium Battery - Bluetooth - 100 Amp Hour. Battery reviews from real customers.
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Rich Solar Battery
- RS74VR
RV
Lithium
12V
100 Ah
Rich Solar
Settle in and enjoy the moment, knowing your battery can handle extra days and cold mornings. And with Alpha 1 Pro's battery management system and smartphone monitoring, you always know how much power you have to keep the adventure going.
Highlights
Run More Between Charges: 100 amp-hours supports everyday power needs in RVs, boats, and off-grid setups.
Check Battery Status From Your Phone: Bluetooth monitoring shows charge level and performance without opening a compartment.
Protects Your Battery Automatically: Built-in BMS guards against overcharging, excess current, and unsafe temperatures.
Replace Your Battery Less Often: More than 7,000 cycles support years of regular travel and seasonal use.
Carry Less Weight in Your Rig: Lighter than a comparable lead-acid battery for easier handling and less added load.
Built for Life on the Road: Durable construction stands up to vibration, changing weather, and regular travel.
Features to know about
Know Your Power, Wherever the Road Takes You
Before you roll out on your next big adventure, you want to feel prepared, not left guessing if your battery will hold up when you need it most. With built-in Bluetooth, you can check your battery's health, charge, and performance right from your phone. If you're parked in the pines, docked at the lake, or boondocking off the beaten path, you stay in control - no more crawling into storage compartments or second-guessing your setup.
Built to Outlast Ordinary Batteries
Traditional lead-acid, AGM, and gel batteries can wear down after just a few seasons of hard use. The Alpha 1 Pro is built for the long haul, delivering over 7,000 cycles and guided by a smart BMS that shields your battery from overcharging, deep discharging, and extreme temperatures. When cold weather hits, the built-in self-heating system activates at 41°F and keeps working until the battery is warmed above 50°F. This helps prevent freezing temperatures from cutting your trip short or shortening battery life, so you get worry-free power and the freedom to explore even when the forecast turns frosty. Enjoy fewer power interruptions and the confidence that your battery is ready for every season.
Specs:
Battery Details:
Type: lithium iron phosphate (LiFePO4/LFP)
Capacity: 100 amp hours
Nominal voltage: 12.8V
Fully charged voltage: 14.4V ± 0.2V
Discharging cutoff voltage: 11.2V
Nominal energy: 1,280 Wh
Maximum charging/discharge current: 100 amps
Cycle life: 7,000+ cycles
Bluetooth monitoring: yes
Internal heating: yes (automatic, for cold weather charging)
Ratings & Certifications:
Protection class: IP65 (water and dust resistant)
Certifications: UL1973, FCC, UN38.3, ETL
Housing material: plastic
Dimensions & Environment:
Overall dimensions: 10-1/8" long x 6-5/8" wide x 8-1/4" tall
Weight: 24.3 lbs
Charge temperature range: 32°F to 131°F (0°C to 55°C)
Discharge temperature range: -4°F to 140°F (-20°C to 60°C)
Recommended storage temperature range: 14°F to 95°F (-10°C to 35°C)
Warranty:
10 Year
RS-B121SP Rich Solar Alpha 1 Pro Premium Lithium Battery - LiFePO4 - Bluetooth - 12V - 100 Amp Hour - Battery Bank - RV or Boat Power Bank Battery
California Proposition 65 - WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.
Customers Who Purchased This Battery Also Bought...
Compact, durable, and smart, this battery gives you serious power without the hassle. If you’re upgrading from lead-acid or just want a safe, lightweight lithium option you can monitor from your phone this Alpha Pro is a standout. Mount it upright, hook up the positive/negative, pair your phone, and you're good to go—simple, clean, and powerful. 3373517
Hey Chris! Yes, PowerMax converters like the # PM34VR 45 amp, # PM94VR 55 amp, # PM44VR 60 amp, and # PM84VR 100 amp can supply 12V DC power to your system even if a battery isn’t connected. When plugged into shore power, they’ll convert AC power to 12V DC and run your lights, fans, water pump, and other 12V loads directly via the DC fuse box.
That said, without a battery in the system, you won’t have any 12V power once shore power is disconnected. For most RV setups, having a battery... view full answer...
Hey Steve, RV AC units are designed to be powered by AC power and not DC like what a battery like what part # RS74VR provides but if you have a power panel in your RV it will have AC power circuits and it will be wired up so that the panel can draw power from the battery. Does your RV have an AC unit it currently? view full answer...
Hey Henrick, yes I can help you out with finding a good solar panel for the Rich Solar Alpha 1 Pro Lithium Battery # RS74VR. First let's do some quick math based on your electronics:
A 12V fridge (60W × 10 hours) = 600Wh
LED lights, fan, phone charging = 150Wh
Total: ~750Wh per day
You’ll need at least 750Wh of solar charging per day just to break even.
If you used a 100w kit # RS27VR, you would be helping the battery from discharging as quickly, but it's not going to be enough to keep... view full answer...
Great question Jim! Don't worry, you won't be wasting any of you money since the Rich Solar lineup is extremely good quality, and is backed by a great warranty. We just had the pleasure of talking to the Rich Solar reps in person (shout out to George) and he explained the warranty and post-purchase support very well.
A solar kit like Rich Solar RV Solar Charging Kit w/ 6 Panels - 12V - 1,200 Watts # RS67VR consists of solar panels, controllers, and can be paired with a battery like Rich... view full answer...
Good morning Brianna!
On a good sunny day, a 100W panel like the Rich Solar # RS27VR can produce about 30–35 amp-hours of power over 5–6 hours of direct sun. That’s ~6 amps of charge per hour which is enough to recharge a partially depleted 100Ah battery like the Rich Solar Alpha Lithium Battery # RS74VR, run your lights and phone chargers, and top you off for the evening.
Its not enough for heavy draws like a DC fridge, TV, or microwave, but for basic weekend use, its plenty. We often... view full answer...
Hey Chris, a good place to start with would be what is the amp rating of the current battery you have and then decide if that was adequate or not and go with a similar or higher rated lithium battery.
The Rich Solar Alpha part # RS74VR that you referenced is a 100 amp hour battery. I attached a link to all of the lithium batteries we carry as well. view full answer...
Hi Trey!
The Rich Solar Alpha 1 Pro Lithium Battery - Bluetooth - 100 Amp Hour # RS74VR measures 10-1/8" long x 6-5/8" wide x 8-1/4" tall, so as long as that matches the battery you are replacing, it will fit your current battery box. We don't have access to the size of the battery in your 2024 A-Liner Expedition trailer, unfortunately.
The Bluetooth feature allows you to monitor the batteries status in real time. That way you can tell when it's getting low and when it's fully charged.... view full answer...
Hey Bob, yes the Rich Solar Alpha 1 Pro Lithium Battery part # RS74VR would be a great option to replace the lead acid batteries you have currently. I wouldn't try and mix this in with your current lead acid batteries though as it would need to be all the same type. The only thing that has to be potentially changed is your charger. You would need to make sure it has a lithium profile on it as lithium batteries charge at a different voltage. If you let me know what you have I can tell you... view full answer...
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