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The Rich Solar ALPHA 4 24V 100Ah LiFePO4 Battery is a 25.6V lithium iron phosphate battery that stores 2,560Wh in a 20.9 x 8.1 x 8.5 inch case. It supports 100A of charge and discharge current, which suits 24V inverters, inverter chargers and solar charge controllers, and it loses 5% or less of its charge per month in storage.
This listing offers seven options. The ALPHA 4 Lite is the value model with 4,000+ cycles and low-temperature charging protection. The standard ALPHA 4 adds a 200W built-in heater, Bluetooth monitoring and 5,000+ cycles. The five battery bank options are Rich Solar's 24V banks of 200Ah, 300Ah, 400Ah, 600Ah and 800Ah, built from two to eight ALPHA 4 Lite batteries with the cables to connect them.
Each ALPHA 4 is a true 24V battery at 25.6V nominal, so you do not need to wire two 12V batteries in series. A 24V system draws half the current of a 12V system for the same load, which allows smaller cables and lower losses.
The ALPHA 4 Lite uses Grade A+ LiFePO4 cells rated for 4,000+ cycles. The ALPHA 4 uses Grade A cells rated for 5,000+ cycles. Both are maintenance-free, with no watering or equalizing.
LiFePO4 cells should not be charged below freezing. The standard ALPHA 4 has a 200W internal heater that automatically warms the battery so it can charge safely in cold weather. Both models include low-temperature charging protection, which pauses charging in the cold and resumes when conditions are safe.
The standard ALPHA 4 connects to the RICH SOLAR app to show real-time battery status on your phone. The ALPHA 4 Lite and the Lite-based battery banks do not include Bluetooth.
The battery management system protects against overcharge, over-discharge, overcurrent, short circuit and temperature extremes. Both models use a UL94 V-0 flame-retardant housing with an IP65 rating for dust and water spray.
The bank options pair matched ALPHA 4 Lite batteries with 1 ft 2 AWG interconnect cables for faster installation, from a 5,120Wh two-battery bank up to a 20,480Wh eight-battery bank.
Off-grid cabins and homes. Store solar energy for a 24V inverter system, and pick a bank size that matches your daily use.
Large RVs and buses. Power a 24V house system with an inverter for air conditioning, cooking and appliances.
Home backup. Pair a bank with a 24V inverter charger to keep essential circuits running through outages.
Boats. Run 24V house loads, thrusters and electronics. Rich Solar lists marine use as a primary application.
Workshops and remote sites. Run tools, lighting and communications far from the grid.
Versus two 12V batteries in series. One ALPHA 4 replaces a pair of 12V batteries with a single battery and BMS, fewer connections and no series balancing to manage.
Versus lead-acid or AGM batteries. Lead-acid banks are usually discharged to only about half their capacity and need replacing far sooner. The ALPHA 4 offers thousands of cycles with no maintenance.
ALPHA 4 Lite versus ALPHA 4. Choose the Lite for warm climates or heated spaces. Choose the ALPHA 4 when the battery will charge in freezing weather, or when you want app monitoring and 1,000 more rated cycles.
This may be a good fit if
Only the standard ALPHA 4 (RS-B241S). The ALPHA 4 Lite and all five battery banks do not have a heater or Bluetooth, but they include low-temperature charging protection.
The 200Ah bank includes two ALPHA 4 Lite batteries and two cables. The 300Ah bank has three batteries and four cables, the 400Ah bank four and six, the 600Ah bank six and ten, and the 800Ah bank eight and fourteen. All cables are 1 ft 2 AWG.
Rich Solar lists a 5-year warranty for the ALPHA 4 Lite, the ALPHA 4 and the battery banks.
No. It is a 24V battery. For a 12V system, look at the ALPHA 1, ALPHA 2 or ALPHA 3.
The Rich Solar ALPHA 4 24V 100Ah LiFePO4 Battery gives 24V solar, RV and backup systems 2,560Wh per battery, with a heated Bluetooth model, a value Lite model and complete banks up to 800Ah. At Outbound Power, we help customers size battery banks and match them to 24V inverters, chargers and solar. If you have questions about which ALPHA 4 option fits your system, our team is happy to help.
Rich Solar ALPHA 4 24V 100Ah LiFePO4 Battery Specifications |
|
|---|---|
| Shared Specifications | |
| Cell Chemistry | LiFePO4 (lithium iron phosphate) |
| Nominal Voltage | 25.6V |
| Rated Capacity | 100Ah per battery |
| Nominal Energy | 2,560Wh per battery |
| Charging Voltage | 28.8V |
| Maximum Charge Current | 100A |
| Maximum Discharge Current | 100A |
| Self-Discharge | 5% or less per month |
| Charge Temperature | 32°F to 131°F (0°C to 55°C) |
| Discharge Temperature | -4°F to 140°F (-20°C to 60°C) |
| Protection Rating | IP65 |
| Housing | UL94 V-0 flame-retardant |
| BMS Protection | Overcharge, over-discharge, overcurrent, short circuit, temperature |
| Low-Temperature Charging Protection | Yes |
| Dimensions | 20.9 x 8.1 x 8.5 in |
| Certifications | UN 38.3, MSDS |
| Warranty | 5 years |
| ALPHA 4 Lite (RS-B24100) | |
| Cells | Grade A+ LiFePO4 |
| Cycle Life | 4,000+ cycles |
| Internal Heating | No |
| Bluetooth | No |
| Weight | 52.9 lbs |
| ALPHA 4 (RS-B241S) | |
| Cells | Grade A LiFePO4 |
| Cycle Life | 5,000+ cycles |
| Internal Heating | Yes, 200W |
| Bluetooth | Yes, RICH SOLAR app |
| Weight | 48.5 lbs |
| 200Ah Battery Bank, 2 x ALPHA 4 Lite (RS-B24100x2) | |
| Bank Capacity | 200Ah at 24V |
| Bank Energy | 5,120Wh |
| Included Cables | 2 x 1 ft 2 AWG |
| 300Ah Battery Bank, 3 x ALPHA 4 Lite (RS-B24100x3) | |
| Bank Capacity | 300Ah at 24V |
| Bank Energy | 7,680Wh |
| Included Cables | 4 x 1 ft 2 AWG |
| 400Ah Battery Bank, 4 x ALPHA 4 Lite (RS-B24100x4) | |
| Bank Capacity | 400Ah at 24V |
| Bank Energy | 10,240Wh |
| Included Cables | 6 x 1 ft 2 AWG |
| 600Ah Battery Bank, 6 x ALPHA 4 Lite (RS-B24100x6) | |
| Bank Capacity | 600Ah at 24V |
| Bank Energy | 15,360Wh |
| Included Cables | 10 x 1 ft 2 AWG |
| 800Ah Battery Bank, 8 x ALPHA 4 Lite (RS-B24100x8) | |
| Bank Capacity | 800Ah at 24V |
| Bank Energy | 20,480Wh |
| Included Cables | 14 x 1 ft 2 AWG |
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