Automatic low-temperature heating
The 200W heater starts below 32°F and stops after the battery rises above 41°F, provided each battery receives stable charge current above 3.5A.
Renogy
Renogy 48V 50Ah Smart LiFePO4 Battery with Self-Heating
Renogy 48V 50Ah Smart LiFePO4 Battery with Self-Heating
SKU: RBT4850LFPSH-G1-US
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- $701.99
- Regular price
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- $701.99
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Cold-weather-ready 48V storage
2.4kWh of smart LiFePO4 capacity with integrated self-heating.
The Renogy RBT4850LFPSH is a 48V-class 50Ah lithium battery for compatible off-grid and backup systems that need compact energy storage and cold-weather charging support.
2.4kWhNominal energy
50AhRated capacity
50AContinuous charge/discharge
IP65Enclosure rating
Compact 48V-class storage with cold-weather charging support
Each RBT4850LFPSH provides 2.4kWh of nominal LiFePO4 storage for a compatible 48V off-grid or backup-power system. Its BMS manages cell protection, while the internal heater warms the cells before cold-weather charging when sufficient charge current is available. Up to eight matching batteries may be connected in parallel for 19.2kWh of nominal storage; series connection is not supported for this exact model.
50A continuous current
The battery supports up to 50A continuous charging and discharging, plus a 100A discharge peak for five seconds under Renogy's stated limits.
Parallel expansion to 19.2kWh
Build a bank with as many as eight matching batteries in parallel using equal-length cabling and correctly sized protection.
Smart BMS—not app monitoring
The word “Smart” refers to protective battery management. Renogy lists no built-in Bluetooth and no communication port on this exact battery.
Best fit for
- Properly designed 48V off-grid cabin, workshop, shed and backup-power systems
- Cold-climate installations where charging may begin below freezing
- Compact banks needing 2.4kWh per battery and parallel expansion
- Systems whose inverter and charger settings support this exact LiFePO4 voltage range
Check before ordering
- One battery's 50A continuous limit is approximately 2.4kW DC at nominal voltage before inverter losses
- Use compatible 48V-class charging equipment set for the 42–55.5V operating range and 54V charge cutoff
- Parallel only: use matching batteries, voltage-balance before connection and use equal-length cables
- Size the fuse, disconnect, conductors and terminals for the designed bank current; do not rely on the BMS as system protection
Sizing it for an inverterA single battery cannot continuously supply a 3,500W inverter at full output because its continuous discharge limit is 50A. High-output inverter systems may require multiple matched batteries and a professionally designed bank.
What's in the box
- One Renogy 48V 50Ah Core LiFePO4 battery with self-heating (RBT4850LFPSH-US)
- Two long M8 × 1.25 × 20 mm terminal bolts
- Two insulating sleeves
- One user manual
Mounting hardware, cabling, adapters, protection devices, controllers, inverters and batteries are included only when specifically listed above.
Buyer Questions
Frequently asked questions
Does “Smart” mean it has Bluetooth or app monitoring?
No. This exact model uses a smart protective BMS, but Renogy specifies no built-in Bluetooth and no communication port.
How many batteries can be connected?
Up to eight matching batteries may be connected in parallel for as much as 19.2kWh of nominal capacity. Do not connect this model in series.
How does the self-heater work?
Each battery needs stable charging current above 3.5A. The heater starts below 32°F and stops after the battery temperature rises above 41°F.
Can I mix it with another battery?
Do not combine different chemistries, capacities, voltages, brands or models. Parallel batteries should be voltage-balanced, use equal-length cabling and follow the current Renogy manual.
Is one battery enough for a 3,500W inverter?
Not at the inverter's full continuous output. One battery is limited to 50A continuous—approximately 2.4kW DC at nominal voltage before conversion losses.
Can it replace a 48V lead-acid bank?
Potentially, but the charger, inverter settings, voltage range, cabling and protection devices must all support this exact LiFePO4 battery. Verify the full system before replacement.
Product Data
Technical Specifications
| Specification | Details |
|---|---|
| Product | Renogy 48V 50Ah Smart LiFePO4 Battery with Self-Heating |
| Torven SKU | RBT4850LFPSH-G1-US |
| Renogy model / MPN | RBT4850LFPSH-US |
| Chemistry | Lithium iron phosphate (LiFePO4) |
| Nominal system class | 48V |
| Rated capacity | 50Ah |
| Nominal energy | 2,400Wh |
| Operating voltage range | 42–55.5V |
| Charge cutoff voltage | 54V |
| Maximum continuous charge | 50A |
| Maximum continuous discharge | 50A |
| Peak discharge | 100A for 5 seconds |
| Cycle-life rating | More than 6,000 cycles at Renogy's stated 0.5C, 25°C, 80% DOD and 80% EOL conditions |
| Self-heater | 200W; starts below 32°F and stops above 41°F with stable charge current above 3.5A per battery |
| Parallel expansion | Up to 8 matching batteries / 19.2kWh nominal; parallel only |
| Built-in Bluetooth / communication port | No / No |
| Charge temperature | 32°F to 131°F |
| Discharge temperature | -4°F to 140°F |
| Dimensions | 15.1 × 7.6 × 9.8 in |
| Net weight | 51.4 lb / 23.3 kg |
| Enclosure / housing | IP65 / ABS |
| Manufacturer warranty | 5-year prorated material/workmanship warranty, subject to Renogy's current written terms |
Installation note: Confirm the current Renogy manual and every connected component's limits before installation. Electrical values are stated at standard test conditions unless noted otherwise.
Need help checking fit? Contact Torven Power with your battery voltage, controller or power-station model, planned panel count and wiring layout.
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Shipping: Free standard shipping applies to eligible products in the contiguous 48 states with no order minimum. Oversized, freight, remote-area, expedited or manufacturer-restricted shipments may require an additional charge. If one applies, Torven Power will contact you for approval before processing the order. Review the Shipping Policy.
Returns: Return requests are subject to product eligibility, condition, timing and supplier-specific exceptions. Review the Return & Refund Policy before ordering.
Renogy
Renogy 48V 50Ah Smart LiFePO4 Battery with Self-Heating
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