Product Description
Storage Power Ups Battery 12v/24v 50Ah Rechargeable 21700 18650
Li-Ion Battery Pack
Specification:| Product name | 12V 50Ah |
| Model | RSK-1250 |
| Rated Capacity | 50Ah |
| Nominal Voltage | 11.1V |
| Over discharge protection voltage | 9V±0.05V |
| Over charge protection voltage | 12.6V±0.05V |
| AC Impedance New Cell Max.(mΩ) | ≤100 mΩ |
| Maximum Continuous Charge Current | ≤10A adjustment |
| Maximum Continuous Discharge Current | ≤15A adjustment |
| Maximum Pulse discharge current | ≤30A adjustment |
| Operation Temperature Range | Charge: 0~45°C,Discharge: -20~60°C |
| Storage Temperature Range | Less than 1 year: -20~25°C |
| Less than 3 months: -20~40°C |
| Storage Temperature Range | Less than 30 Days: -25°C~45°C |
| Less than 90 Days: -25°C~30°C |
| Weight | Approx 2.8kg |
| Cycle Characteristic | 500times |
Main features:
21700 Cell Technology: Cylindrical cells (21mm × 70mm) offer 20–30% higher energy density than 18650 cells, storing more energy in a compact, lightweight
design.
Lightweight: Weighs ~2–3 kg, improving portability and reducing load in mobile
applications.
50Ah Rating: Provides 600Wh of energy storage, suitable for powering devices
for extended periods (e.g., camping fridges, RV systems, or
trolling motors).
Durability: Typically offers 1000–2000 charge cycles (80% capacity retention after 1000 cycles), outlasting lead-acid
batteries (200–500 cycles).
Rapid Recharge: Supports high charging currents (e.g., 10–15A), achieving 0–80%
charge in 2–3 hours (full charge in 4–6 hours with a compatible charger).
Safety Features: Prevents overcharging, over-discharging, short circuits, and
thermal runaway.
Cell Balancing: Ensures uniform charging across cells, maximizing capacity and
lifespan.
Thermal Regulation: Maintains optimal temperatures (e.g., -20°C to 60°C) for safe
operation.
Low Voltage Cutoff: Safely discharges to 10.5–11V without damage, unlike lead-acid
batteries (which require 50% DoD to avoid sulfation).
Peak Power Output: Delivers consistent 12V under heavy loads (e.g., 100–200A for
short bursts), ideal for starting motors or inverters.
No Watering: Eliminates the need for electrolyte checks or maintenance, unlike
lead-acid batteries.
Operating Temperatures: Functions efficiently in moderate climates (-10°C to 50°C),
though extreme cold may reduce capacity temporarily.
Recyclability: Lithium-ion batteries are more sustainable than lead-acid
alternatives.
Low Self-Discharge: Loses <5% of charge per month when idle, ideal for seasonal
use.
RVs & Marine: Powers lighting, fridges, trolling motors, or navigation systems.
Solar Storage: Stores energy from solar panels for off-grid use.
Portable Power Stations: Provides backup power for tools, appliances, or electronics.
