The 24V 120Ah 18650 lithium battery pack is a high-capacity, rechargeable energy solution optimized for solar systems and electric vehicles. Built with durable LiFePO4 cells, it offers 3,000+ cycles, deep discharge recovery, and thermal stability. Paired with a 25.2V/2A charger, it ensures efficient charging. Its 48V variant supports higher power demands, making it ideal for renewable energy and EV applications.
Deespaek Battery Energy Density
How Does the 24V 120Ah Lithium Battery Compare to Lead-Acid Alternatives?
The 24V 120Ah lithium battery outperforms lead-acid in energy density, lifespan (3x longer), and weight (50% lighter). It maintains stable voltage during discharge, supports deeper cycling (80-90% DoD), and charges 2x faster. Unlike lead-acid, it requires no maintenance and operates efficiently in temperatures from -20°C to 60°C.
| Parameter | LiFePO4 | Lead-Acid |
|---|---|---|
| Cycle Life | 3,000+ | 500-800 |
| Weight (kg) | 14.5 | 28-32 |
| Charging Time | 4-6 hrs | 8-10 hrs |
Extended Content: The operational advantages extend beyond basic specifications. Lithium batteries maintain 95% capacity after 2,000 cycles compared to lead-acid’s 40% degradation after 500 cycles. Their flat discharge curve ensures consistent power output – critical for sensitive electronics. In cold environments (-10°C), lithium retains 85% capacity versus lead-acid’s 50% performance drop. For solar installations, this translates to 30% more usable energy from the same nominal capacity.
How to Properly Charge a 24V LiFePO4 Battery Pack?
Use the 25.2V/2A charger to charge at 0.2C (24A max). Balance charging via the BMS ensures cell uniformity. Avoid temperatures below 0°C during charging. Full charge takes 6-8 hours. For longevity, maintain SOC between 20-80% for daily use and perform full cycles monthly. Disconnect when stored for extended periods.
Deespaek 12V 200Ah LiFePO4 Battery
Extended Content: Optimal charging requires understanding three stages: bulk (constant current), absorption (constant voltage), and float. The BMS actively monitors individual cell voltages during absorption phase, adjusting current flow to prevent overcharging. For solar applications, MPPT controllers should be programmed with LiFePO4-specific parameters: absorption voltage 28.8V, float 27.2V. Partial state-of-charge (PSOC) operation is acceptable but requires full recharge every 30 days to prevent voltage drift. Storage at 50% SOC with monthly top-ups maximizes shelf life.
“The 24V 120Ah LiFePO4 packs are revolutionizing off-grid energy. Their cycle life and depth of discharge make them 27% more cost-effective than NMC over a decade. However, users must ensure proper ventilation—while stable, prolonged exposure above 45°C can degrade lifespan by 15%. Always size solar arrays to recharge within 5 sun hours for optimal performance.”
— Dr. Elena Torres, Renewable Energy Systems Analyst
FAQ
- How long does a 24V 120Ah battery last on a single charge?
- Powering a 1,000W load, it lasts 2.4 hours (120Ah × 24V ÷ 1,000W = 2.88kWh). For a 300W solar fridge, runtime exceeds 9 hours. Actual duration depends on discharge rate, temperature, and inverter efficiency (typically 85-93%).
- Can I connect two 24V batteries to make 48V?
- Yes, series connection creates 48V 120Ah. Ensure both batteries have identical capacity, age, and charge state. Use a 48V-compatible BMS and charger. Parallel connection maintains 24V but doubles capacity to 240Ah.
- Is the 25.2V charger compatible with other lithium batteries?
- Only for LiFePO4 chemistry (3.6V max per cell). Using it on NMC or LCO batteries (4.2V/cell) risks undercharging. Confirm charger voltage matches battery specs—NMC 24V packs require 29.4V chargers.