TIANNENG TN12-7.0Ah Lead Acid

Physical Specifications

Grid Corrosion: Rare alloy with patented technology

Model Coverage: Suitable for both cyclic and float charging applications

Increased Charge Acceptance: Special additives in the negative electrode

Product Features

Nominal Voltage: 12V

Nominal Capacity (25°C/77°F):

7.0Ah (20-hour discharge @ 1.80V/cell)

6.54Ah (10-hour discharge @ 1.80V/cell)

5.90Ah (5-hour discharge @ 1.75V/cell)

5.34Ah (3-hour discharge @ 1.70V/cell)

Internal Resistance: 28mΩ @ 25°C/77°F

Operating Temperature Range:

Charging: 15~50°C (5~122°F)

Charging: 0~40°C (32~104°F)

Storage: 15~40°C (5~104°F)

Optimum Temperature: 25±2°C (77±4°F)

Maximum Charging Current: 105A (5s)

Dimensions and Weight

Dimensions (mm):

Length: 151 ± 1

Width: 65 ± 1

Height: 94 ± 1

Total Height: 100 ± 1

Weight: ~2.5 kg

Battery Material: ABS UL94-HB (Optional: FR ABS UL94-V0)

Terminal Type: T2

Product Applications

Electric Bicycles for Children

Uninterruptible Power Supply Systems (UPS)

Security Systems

Telecommunication Equipment

Energy Storage Systems

Electrical Characteristics

Float Charge

Maximum Current: ≤0.3C A20

Constant Voltage: 13.5~13.8V @ 25°C (77°F)

Temperature Coefficient: -18mV/°C

Equalization Charge

Constant Voltage: 14.4~14.7V @ 25°C (77°F)

Temperature Coefficient: -24mV/°C

Performance and Lifespan

Designed Lifespan: 3-5 Years @ 25°C

Capacity at Different Temperatures:

-20°C: ~60%

0°C: ~80%

25°C: 100%

40°C: ~103%

Self-discharge:

Retains 75% of capacity after 6 months of storage at 25°C

Retains 50% of capacity after 12 months

Warnings and Maintenance

Store the battery in a cool, dry place

Do not overcharge or overdischarge the battery

Regularly check the terminals and connection