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AJ-4824
ANJAROEL
This AJ-4824 15S4P lithium iron phosphate battery pack is developed and produced by Shenzhen ANJAROEL Technology Co., Ltd. Marked as nominal 48V, 24Ah capacity, it adopts eco-friendly LFP cells without mercury or cadmium heavy metals. Built with strict compliance with UL, CE and internal enterprise standards, the pack passes full environmental and safety tests. It delivers steady power under cold and hot weather, supports long deep-cycle service, and comes with integrated multi-protection BMS. Compact outer casing and standard 3-pin IEC inlet plug make it easy to install for electric mobility, small solar storage and industrial standby equipment. All tests are conducted under standard lab atmosphere: 23~27℃, 45%~85% RH, 86~106kPa.
The AJ-4824 15S4P Lithium Iron Phosphate Battery Pack is a premium, eco-friendly energy storage unit independently developed and produced by Shenzhen ANJAROEL Technology Co., Ltd. Featuring a standard nominal voltage of 48V and a rated capacity of 24Ah, this battery adopts high-purity LFP cells free of mercury, cadmium and other heavy metals, delivering green, non-polluting and sustainable power output with exceptional environmental friendliness.
Manufactured under rigorous quality control standards, the battery fully complies with UL and CE international certifications and strict internal enterprise specifications, passing comprehensive environmental adaptation and safety performance tests. It maintains stable and consistent power output under extreme cold and hot weather conditions, supporting reliable long-term deep-cycle operation for prolonged service life. Equipped with a built-in intelligent BMS protection system, the pack provides all-round safeguards against overcharge, over-discharge, overcurrent and overheating, effectively preventing operational faults and ensuring long-term safe and stable performance.
Designed with a compact and streamlined outer casing and fitted with a standard 3-pin IEC inlet plug, the battery features plug-and-play installation and effortless maintenance. All performance tests are completed in standardized laboratory environments to guarantee accurate and reliable technical parameters. Versatile and highly adaptable, it serves as an ideal power solution for electric mobility devices, small solar energy storage systems and industrial standby power equipment, balancing safety, durability and practicality perfectly.
Product Advantage |
It achieves more than 4,000 full cycles at 100% DOD while retaining 80% original capacity, far outperforming lead-acid batteries. Under standard 0.5C charge/discharge cycle testing at 25℃, cells maintain consistent capacity decay rate without fast performance drop after repeated deep discharge. This drastically cuts your long-term replacement and maintenance cost for regular daily use.
The battery works reliably across an extensive temperature window. Discharge operates stably from -20℃ up to 55℃. After 8-hour soak at -20℃, it still releases ≥70% rated capacity under 1C discharge. At high temperature 55℃, capacity retention hits over 90%. It also withstands 24h constant humidity test at 40℃ & 90~95% RH with zero liquid leakage, suitable for outdoor equipment used in cold northern regions and hot tropical areas. Storage range covers -10℃ to 35℃.
Standard continuous discharge current reaches 10A, steady 20A long-term output at 25℃, and peak continuous discharge hits 30A when SOC ≥50%. Internal resistance is controlled under 50mΩ after standard charging and 1–4 hours rest, which avoids obvious voltage drop under heavy loads and delivers smooth power to motors and inverters. Max charging current is adjustable based on ambient temperature: 0.5C within 10–20℃ and limited to 0.2C below 10℃ to protect cell health.
The complete safety test suite proves stable performance under harsh abuse conditions. No fire or explosion occurs during overcharge, external short circuit, thermal abuse, extrusion and 1m free drop from X/Y/Z axes. It holds 92% capacity after 28-day open-circuit storage, and recovers ≥93% capacity after full discharge and recharge cycles. The robust plastic housing shows no deformation, swelling or liquid leakage after all environmental and mechanical impact tests.
Zero toxic mercury and cadmium inside cells, meeting global environmental regulations. The whole pack weighs only ~12.2kg with compact outer size 150×180×255mm, easy to carry and install in limited space. Standard 3-pin IEC male plug for both charging and discharging, compatible with mainstream 48V LiFePO4 chargers on the market. Simple CC/CV charging curve, fully charged within 5–6 hours at standard 5A charging current.
Technical Parameters |
Test Item | Parameter Details |
Model | AJ-4824 (15S4P) |
Battery Chemistry | LiFePO4 (Lithium Iron Phosphate) |
Nominal Voltage | 48V |
Rated Capacity | 24Ah (Min 22Ah) |
Open Circuit Voltage (Fully Charged) | ≥49V |
AC Internal Resistance | ≤50mΩ |
Overall Dimension | L150 × W180 × H255 mm |
Approx Total Weight | 12.2 kg (with housing) |
Charge Mode | CC / CV |
Standard Charge Current | 5A |
Max Charge Current | 0.5C (10–20℃) / 0.2C (0–10℃) |
Charge Cut-off Voltage | 54.75V |
Charge Cut-off Current | 0.2A |
Standard Charging Time | 5–6 Hours |
Charge Ambient Temp | 0 ~ 55℃ |
Standard Discharge Current | 10A |
Continuous Discharge Current | 20A (@25℃) |
Max Continuous Discharge Current | 30A (SOC ≥50%, 25℃) |
Discharge Cut-off Voltage | 37.5V |
Discharge Working Temp | -20 ~ 55℃ |
Storage Temperature Range | -10 ~ 35℃ |
Cycle Life | ≥4000 cycles @100% DOD, 80% capacity left |
Low Temp Capacity (-20℃, 1C) | ≥70% rated capacity |
High Temp Capacity (55℃, 1C) | ≥90% rated capacity |
28-Day Open Circuit Capacity Retention | ≥92% |
Capacity Recovery After Full Discharge | ≥93% |
Charge & Discharge Port | 3-pin IEC male plug |
Certifications | UL, CE, Internal Factory Standard |
Product Uses |
Deliver steady power for daily commuter e-bikes, cargo tricycles and light electric trolleys. Strong low-temperature performance ensures normal riding in cold winter without severe range reduction, while long cycle life cuts frequent battery replacement cost.
Match low-power 48V solar inverters and mini photovoltaic setups for cabins, garden power and remote monitoring equipment. Low self-discharge rate allows long idle storage without regular top-up.
Serve as backup power for portable testing machines, outdoor monitoring cameras and small automation robots. Wide humidity and temperature tolerance guarantees stable operation in factory workshops and open-air working sites.
Fit compact RV power systems and camping energy kits. Safe LFP chemistry removes fire risk during long outdoor stays, and lightweight structure saves vehicle load weight.
Product Operate Guide |
1. Use dedicated LiFePO4 charger with 54.75V cut-off voltage; lead-acid chargers are not recommended.
2. Avoid charging under temperature below 0℃ to prevent cell damage, and limit charging current when ambient temperature drops below 10℃.
3. Do not discharge the pack below 37.5V for long-term storage; keep SOC between 50%–70% if idle for months.
4. Place the battery in dry, ventilated space; avoid heavy extrusion, sharp impact or complete water immersion.
5. Inspect the plug and casing regularly for cracks or liquid leakage before daily use.
FAQ |
A1: Yes. It still releases over 70% rated capacity after long soak at -20℃, much better than ternary lithium and lead-acid batteries which lose most power under freezing weather.
A2: It supports more than 4,000 full deep cycles, which equals roughly 8–10 years of normal daily cycling for e-bikes and small solar storage systems.
A3: Our integrated BMS provides full protection. All abuse lab tests including short circuit, overcharge, high-temperature heating and drop prove zero fire or explosion risk under standard operation.
A4: Not advised. Lead-acid chargers have different voltage curves, which will shorten the battery lifespan or trigger protection faults. Please use matched LiFePO4 charger with 54.75V cut-off voltage.
