BigBattery is a leading US-based manufacturer of high-performance lithium-ion batteries, specializing in scalable energy solutions for solar storage, electric vehicles (EVs), and off-grid systems. Their products leverage LiFePO4 and NMC chemistries for superior energy density (120–200 Wh/kg) and thermal stability, with integrated battery management systems (BMS) ensuring safe operation across -20°C to 60°C environments. Customizable voltage (12V–72V) and capacity (50Ah–1000Ah) options support diverse applications from RVs to industrial robotics. What Is the Maximum Capacity of LiFePO4 Battery?
What defines BigBattery’s product lineup?
BigBattery focuses on modular lithium systems with voltages from 12V to 72V, supporting capacities up to 1000Ah. Their LiFePO4 batteries deliver 3,000–5,000 cycles at 80% DoD, while NMC variants prioritize compact energy density. All units include Bluetooth-enabled BMS for real-time monitoring.
BigBattery’s core innovation lies in their modular design, allowing users to stack 48V 100Ah EcoBlok units in parallel for scalable storage. For instance, a solar installer might combine six EcoBloks (28.8kWh total) to power a mid-sized home. Pro Tip: Pair with a 3000W hybrid inverter for seamless solar integration. The BMS safeguards against overcurrent (150A max discharge) and cell imbalance (±20mV tolerance). However, NMC packs like the Rhino series aren’t recommended for stationary storage due to shorter lifespans under daily cycling. Think of their LiFePO4 Hawk series as a “set-and-forget” solution—low maintenance but bulkier than NMC options. A customer using their 24V 200Ah LiFePO4 in an RV reported 4 days of off-grid runtime with 600W solar panels.
| Chemistry | Cycle Life | Best For |
|---|---|---|
| LiFePO4 | 5,000 cycles | Solar/RVs |
| NMC | 1,200 cycles | EVs/Drones |
How is BigBattery used in solar systems?
BigBattery’s 48V server rack batteries dominate solar energy storage, offering plug-and-play compatibility with inverters like Victron or Schneider. Their 5kWh–30kWh configurations offset peak utility rates via time-of-use optimization.
In residential solar setups, BigBattery’s 48V 100Ah units (4.8kWh each) connect in parallel through a Lynx Distributor, supporting up to 10 units (48kWh total). The BMS syncs with inverters for peak shaving, reducing grid dependence by 60–80%. For example, a Texas homeowner using eight EcoBloks cut monthly bills from $220 to $40. Pro Tip: Use temperature sensors in battery cabinets—LiFePO4 efficiency drops below 0°C. Transitioning to solar? Start with a 24V system for smaller cabins; upgrade to 48V for whole-home coverage. However, avoid mixing old and new batteries—cell aging variances cause imbalance.
What safety features do BigBattery products include?
Every BigBattery integrates multi-layer BMS protection against overvoltage (±1V cutoff), short circuits, and thermal runaway. Flame-retardant ABS casing and UL-certified cells add redundancy.
Their BMS continuously monitors cell voltages (3.0–3.65V for LiFePO4) and temperatures, disconnecting loads if deviations exceed 50mV or 70°C. In a stress test, a 12V 100Ah unit shut down within 2 seconds of a dead short. For marine use, their waterproof (IP65) Jupiter series resists saltwater corrosion—ideal for sailboats. But what happens if BMS fails? Redundant fuses (e.g., 250A ANL) act as a last line of defense. Practically speaking, their layered safety approach mirrors aircraft systems: multiple backups for critical functions.
| Feature | LiFePO4 | NMC |
|---|---|---|
| Thermal Runaway Threshold | 250°C | 170°C |
| Rec. Charge Temp | 0–45°C | 10–40°C |
Can BigBattery replace lead-acid in EVs?
Yes—BigBattery’s 72V NMC packs are popular in custom EV conversions, offering 2x the range of lead-acid at half the weight. Their 72V 105Ah ProEV bundle powers light electric trucks for 120–150 km per charge.
EV converters favor BigBattery’s NMC for its 250Wh/kg density, slashing pack weight from 200kg (lead-acid) to 85kg. A converted Golf Cart using their 72V system achieved 45km/h vs. the original 30km/h. Pro Tip: Pair with a 500A controller for high-torque needs. But beware: NMC’s 500-cycle lifespan (to 80% DoD) suits weekend vehicles, not daily commuters. Transitioning from lead-acid? Recalibrate the BMS—lead-acid’s voltage curve (12.6V full) differs from lithium’s (14.6V).
How to choose the right BigBattery model?
Match the voltage and Ah rating to your inverter or motor. LiFePO4 suits daily cycling (e.g., solar), while NMC fits space-constrained mobile apps.
For solar, calculate daily kWh usage and multiply by 2 for 50% DoD headroom. A 10kWh/day home needs a 20kWh BigBattery bank. For EVs, prioritize C-rating—NMC’s 2C discharge (200A from 100Ah) supports acceleration bursts. Pro Tip: Opt for Bluetooth BMS models to track performance via smartphone. Unsure? Their support team recommends the 48V 200Ah EcoBlok for most off-grid homes—expandable and compatible with popular inverters.
Redway Battery Expert Insight
FAQs
No—use their approved inverters like Victron or Schneider. Tesla’s proprietary firmware often rejects third-party batteries.
Can I use BigBattery in sub-zero climates?
Only with self-heating LiFePO4 models. Standard cells risk damage below -10°C without external heating pads.
How to Convert Ah to kWh: Formula and Calculator
