Customize Your Capacity Needs
Choose the best lithium batteries for your home energy storage and off-grid life.
Solar System
The Ultimate Solution for Solar Power
WattCycle 12V 280Ah series solar batteries equipped with EVE LF280K-280Ah grade A+ LiFePO4 cells (rated capacity 280Ah, but initial capacity ≥310Ah) are one of your best solar power sources.
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Photovoltaic System Accessories
Photovoltaic system components always require various accessories. Solar batteries are the core. Your system will also require photovoltaic panels, solar controllers, inverters, and possibly monitors, busbars, circuit breakers, etc.
Affordable Energy Solutions
WattCycle’s LiFePO4 solar battery seamlessly toggles between grid-feeding and standalone modes. Under normal conditions, excess solar generation is exported to the grid; during outages or peak-rate periods, the system automatically isolates (islanding) and powers your critical loads.
Series-Parallel Guide
| Battery System | Capacity (For Example Using WattCycle 12V 280Ah Mini Batteries) | Appliances and Power Supported | |||
|---|---|---|---|---|---|
| 12V System | 280Ah | 560Ah (2 batteries in parallel) | 840Ah (3 batteries in parallel) | 1120Ah (4 batteries in parallel) | Small devices such as lights, fans, and low-power appliances. |
| 24V System | 280Ah (2 batteries in series) | 560Ah (4 batteries in 2 series and 2 parallel) | 840Ah (6 batteries in 2 series and 3 parallel) | 1120Ah (8 batteries in 2 series and 4 parallel) | Medium-power devices like refrigerators, TVs, and power tools. |
| 36V System | 280Ah (3 batteries in series) | 560Ah (6 batteries in 3 series and 2 parallel) | 840Ah (9 batteries in 3 series and 3 parallel) | 1120Ah (12 batteries in 3 series and 4 parallel) | High-power equipment like air conditioners, pumps, and electric tools. |
| 48V System | 280Ah (4 batteries in series) | 560Ah (8 batteries in 4 series and 2 parallel) | 840Ah (12 batteries in 4 series and 3 parallel) | 1120Ah (16 batteries in 4 series and 4 parallel) | Whole-home energy systems, multiple high-power appliances, and solar energy storage setups. |
12V System
Capacity: 280Ah
2 batteries in parallel: 560Ah
3 batteries in parallel: 840Ah
4 batteries in parallel: 1120Ah
Appliances: Small devices such as lights, fans, and low-power appliances.
24V System
Capacity: 280Ah (2 batteries in series)
4 batteries (2 series, 2 parallel): 560Ah
6 batteries (2 series, 3 parallel): 840Ah
8 batteries (2 series, 4 parallel): 1120Ah
Appliances: Medium-power devices like refrigerators, TVs, and power tools.
36V System
Capacity: 280Ah (3 batteries in series)
6 batteries (3 series, 2 parallel): 560Ah
9 batteries (3 series, 3 parallel): 840Ah
12 batteries (3 series, 4 parallel): 1120Ah
Appliances: High-power equipment like air conditioners, pumps, and electric tools.
48V System
Capacity: 280Ah (4 batteries in series)
8 batteries (4 series, 2 parallel): 560Ah
12 batteries (4 series, 3 parallel): 840Ah
16 batteries (4 series, 4 parallel): 1120Ah
Appliances: Whole-home energy systems, multiple high-power appliances, and solar energy storage setups.
Know More About Solar Battery Information
What is a solar battery?
A solar battery stores excess electricity generated by solar panels. When solar panels are unable to generate enough electricity, such as at night, on cloudy days, and during power outages, you can use the stored energy to power your home.
Which battery is the best for solar?
Lithium iron phosphate battery!
Pros:
- Higher Energy Density: Compared to traditional lead-acid batteries, LiFePO4 batteries are smaller in size, lighter in weight, and have 2X more energy because LiFePO4 batteries have a higher energy density.
- No Maintenance Hassle: LiFePO4 batteries are green and environmentally friendly and do not require frequent cleaning and maintenance.
- High Depth of Discharge (DoD): LiFePO4 batteries support 5000 - 15.000 cycles, 100% DoD, providing more than 10 years lifespan.
- Rapid and Safe Charging: Most LiFePO4 batteries can be fully charged in four hours or less, depending on the capacity of the solar panel used for charging. In addition, lithium-ion batteries have built-in overcharge protection to ensure that overcharging does not damage the battery.
Are lithium solar batteries safe?
Lithium solar batteries are a safer type of battery than traditional lead-acid batteries, although they have the same safety risks as other types of batteries, including overheating and fire.
How long do WattCycle’s solar batteries last?
More than 10 years!
Equipped with EV grade A+ LiFePO4 cells, WattCycle’s solar batteries support 5000 - 15.000 cycles of life and 100% depth of discharge (DoD).
How many WattCycle‘s batteries can I add to my solar system?
WattCycle batteries of different voltages support different numbers of series and parallel connections. The 12V series battery can support up to 16 batteries for a 4P4S connection; the 24V series battery can support up to 8 batteries for a 4P2S connection.
Tips:
- 4P: 4 batteries connected in parallel
- 4S: 4 batteries connected in series
How do I calculate what size solar battery I need?
Solar battery storage capacity depends on your energy consumption and the amount of backup power you require. Whether you want to store a few hours of power or a full day's worth of power, contacting our customer service can help you determine the right battery capacity for your needs.
Can I remotely monitor my WattCycle's solar system?
If you choose WattCycle's smart battery, you can monitor your solar system remotely on your phone via the WattCycle App. If you choose the regular version battery, you will need to use a battery monitor with shunt to monitor your PV batteries.
Which WattCycle model is best for a small off-grid cabin?
For modest loads (lighting, small appliances), our 12V 100Ah deep cycle solar battery provides around 1 kWh usable capacity and is easy to install.
How can I get assistance if I need it?Can I mix different capacities in one system?
While parallel-stacking is supported, we recommend using identical units—such as multiple 12V 280Ah Mini batteries—for SOC balanced charging and optimum lifespan.
Can I expand capacity later if I start with a 12V 100Ah battery?
Absolutely. All WattCycle 12V battery share the same voltage and communication protocols. Add additional 12V deep cycle solar battery in parallel to meet growing energy demands.
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