D12-250W

AGM High Rate Battery

Discover® VRLA AGM High Rate batteries are dependable and delivers consistent power in backup for UPS and critical power applications. The batteries are maintenance-free, no-gassing, nonspillable and ideal for use in sensitive areas.

MECHANICAL SPECIFICATIONS
Industry Reference   
Length A (in/mm) 9 229
Width B (in/mm) 5.4 138
Height C (in/mm) 8.2 208
Total Height D (in/mm) 8.3 212
Weight (lbs/kgs) 40 18
Terminal * F11M6
Technology AGM, VRLA

NOTE 1: Dimensions have a ±2 mm (0.08 in) tolerance. Weights may vary.
NOTE 2: Refer to terminal guide on website for torque values.

ELECTRICAL SPECIFICATIONS
Voltage (V) 12
Internal Resistance (mΩ) 5.5
Short Circuit (A) (20°C / 68°F) 2100
Self-Discharge (20°C / 68°F) 2-3% per month
Charge Temperature Min: -10°C (14°F) | Max: 50°C (122°F)
Discharge Temperature Min: -40°C (-40°F) | Max: 50°C (122°F)
Storage Temperature -20°C (-4°F) to 60°C (140°F)

NOTE 3: Extra considerations must be given when designing systems for use at maximum temperatures.
NOTE 4: Internal Resistance is approximate.

PERFORMANCE SPECIFICATIONS
Amp Hours (AH)
15 MIN 1 HR 5 HR 10 HR 20 HR
34 48 53 55 57

15MIN @1.67 VPC; 1HR @1.60VPC, 5HR @1.75VPC; 10 HR@ 1.80VPC; 20 HR @1.80VPC. All at 30°C/86°F

Discharge Constant Current (Amperes) @ 25°C / 77°F
VPC/Time 5 MIN 10 MIN 15 MIN 30 MIN 1 HR 3 HR 5 HR 10 HR 20 HR
1.60 VPC 246.00 176.00 145.00 78.00 48.20 18.50 11.50 5.80 3.05
1.65 VPC 225.00 168.00 140.00 76.00 46.90 18.10 11.30 5.80 3.00
1.70 VPC 218.00 160.00 134.00 74.00 45.50 17.60 11.00 5.70 2.95
1.75 VPC 200.00 152.00 128.00 72.00 44.10 17.10 10.70 5.60 2.90
1.80 VPC 185.00 143.00 121.00 69.80 42.50 16.50 10.30 5.50 2.85

 

Discharge Constant Power (Watts) @ 25°C / 77°F
VPC/Time 5 MIN 10 MIN 15 MIN 30 MIN 1 HR 3 HR 5 HR 10 HR 20 HR
1.60 VPC 444.00 313.00 260.00 146.00 86.00 35.20 23.50
1.65 VPC 425.00 301.00 253.00 142.00 835.00 34.40 23.00
1.70 VPC 410.00 290.00 242.00 138.00 81.00 33.50 22.50
1.75 VPC 385.00 278.00 233.00 134.00 78.50 32.60 22.00
1.80 VPC 353.00 265.00 223.00 130.00 75.50 31.70 21.40
 
BENEFITS

ENHANCED RUNTIME

  • Consistent amp hour capacity over lifetime
  • Superior high-rate discharge performance

EXTENDED SERVICE LIFE

  • Up to 12 year design life
  • Low self-discharge rates prolongs shelf life
  • 99% gas recombination extends life

EXTREME TEMPERATURES

  • Wide ambient operating temperature
  • Low temperature operation superior to FLA / Gel batteries

RELIABLE AND SAFE

  • Valve Regulated Lead-Acid, AGM
  • Maintenance-free, nonspillable, no-gassing
  • Flame retardant (UL94:V0) ABS case and cover available

CERTIFIED QUALITY

Discover® manufacturing facilities are fully certified to ISO 9001/14001 and OSHA 18001 standards.

Designed in accordance with and published in compliance with applicable standards, including:

  • IEC 60896-21/22
  • BS EN 60254-1:2005
  • UL, CE Health Safety Certified
SHIPPING CLASSIFICATION
  • Classified as a nonspillable battery
  • Without restriction for transport by Sea (IMDG amendment 27)
  • Without restriction for transport by Air (IATA/ICAO provision 67)
  • Without restriction for transport by Ground (STB, DOT-CFR-HMR49)
 
 
Temperature Effects on Float Life
gra vrla high rate temperature effects on float life
Temperature Effects on Capacity
gra vrla high rate temperature effects on capacity
Charge Characteristics (Cyclic)
gra vrla high rate charge characteristics
Discharge Characteristics
gra vrla high rate discharge characteristics
Self-Discharge Characteristics
gra vrla high rate self discharge characteristics
  1. Due to self-discharge characteristics of lead acid battery technologies, batteries should be charged within 6 months of storage to ensure optimum performance, prevent sulphation and permanent capacity loss.
  2. Charge profile recommendations correspond to battery voltages at 25°C (77°F). For temperatures below, adjust +5mVPC/°C (+3mVPC/°F). Temperatures above, adjust -5mVPC/°C (-3mVPC/°F). Temperature compensated charging helps ensure optimum battery runtime and life performance.
  3. Charge until battery voltage reaches 2.45VPC and hold until current tapers down to 0.01C20 amps. Battery is fully charged under these conditions and charger should be disconnected or switched to “float” voltage. For standby / float use, a constant charge voltage of 2.25-2.30VPC is also acceptable. Hold until the battery seeks its own current level and maintain itself in a fully charged condition.

D12-250W

Printed: 06/12/2024

AGM High Rate Battery

Discover® VRLA AGM High Rate batteries are dependable and delivers consistent power in backup for UPS and critical power applications. The batteries are maintenance-free, no-gassing, nonspillable and ideal for use in sensitive areas.

BENEFITS

ENHANCED RUNTIME

  • Consistent amp hour capacity over lifetime
  • Superior high-rate discharge performance

EXTENDED SERVICE LIFE

  • Up to 12 year design life
  • Low self-discharge rates prolongs shelf life
  • 99% gas recombination extends life

EXTREME TEMPERATURES

  • Wide ambient operating temperature
  • Low temperature operation superior to FLA / Gel batteries

RELIABLE AND SAFE

  • Valve Regulated Lead-Acid, AGM
  • Maintenance-free, nonspillable, no-gassing
  • Flame retardant (UL94:V0) ABS case and cover available

CERTIFIED QUALITY

Discover® manufacturing facilities are fully certified to ISO 9001/14001 and OSHA 18001 standards.

Designed in accordance with and published in compliance with applicable standards, including:

  • IEC 60896-21/22
  • BS EN 60254-1:2005
  • UL, CE Health Safety Certified
SHIPPING CLASSIFICATION
  • Classified as a nonspillable battery
  • Without restriction for transport by Sea (IMDG amendment 27)
  • Without restriction for transport by Air (IATA/ICAO provision 67)
  • Without restriction for transport by Ground (STB, DOT-CFR-HMR49)
MECHANICAL SPECIFICATIONS
Industry Reference   
Length A (in/mm) 9 229
Width B (in/mm) 5.4 138
Height C (in/mm) 8.2 208
Total Height D (in/mm) 8.3 212
Weight (lbs/kgs) 40 18
Terminal * F11M6
Technology AGM, VRLA

NOTE 1: Dimensions have a ±2 mm (0.08 in) tolerance. Weights may vary.
NOTE 2: Refer to terminal guide on website for torque values.

ELECTRICAL SPECIFICATIONS
Voltage (V) 12
Internal Resistance (mΩ) 5.5
Short Circuit (A) (20°C / 68°F) 2100
Self-Discharge (20°C / 68°F) 2-3% per month
Charge Temperature Min: -10°C (14°F) | Max: 50°C (122°F)
Discharge Temperature Min: -40°C (-40°F) | Max: 50°C (122°F)
Storage Temperature -20°C (-4°F) to 60°C (140°F)

NOTE 3: Extra considerations must be given when designing systems for use at maximum temperatures.
NOTE 4: Internal Resistance is approximate.

 
PERFORMANCE SPECIFICATIONS
Amp Hours (AH)
15 MIN 1 HR 5 HR 10 HR 20 HR
34 48 53 55 57

15MIN @1.67 VPC; 1HR @1.60VPC, 5HR @1.75VPC; 10 HR@ 1.80VPC; 20 HR @1.80VPC. All at 30°C/86°F

PERFORMANCE SPECIFICATIONS
Discharge Constant Current (Amperes) @ 25°C / 77°F
VPC/Time 5 MIN 10 MIN 15 MIN 30 MIN 1 HR 3 HR 5 HR 10 HR 20 HR
1.60 VPC 246.00 176.00 145.00 78.00 48.20 18.50 11.50 5.80 3.05
1.65 VPC 225.00 168.00 140.00 76.00 46.90 18.10 11.30 5.80 3.00
1.70 VPC 218.00 160.00 134.00 74.00 45.50 17.60 11.00 5.70 2.95
1.75 VPC 200.00 152.00 128.00 72.00 44.10 17.10 10.70 5.60 2.90
1.80 VPC 185.00 143.00 121.00 69.80 42.50 16.50 10.30 5.50 2.85

15MIN @1.67 VPC; 1HR @1.60VPC, 5HR @1.75VPC; 10 HR@ 1.80VPC; 20 HR @1.80VPC. All at 30°C/86°F

 
Discharge Constant Power (Watts) @ 25°C / 77°F
VPC/Time 5 MIN 10 MIN 15 MIN 30 MIN 1 HR 3 HR 5 HR 10 HR 20 HR
1.60 VPC 444.00 313.00 260.00 146.00 86.00 35.20 23.50
1.65 VPC 425.00 301.00 253.00 142.00 835.00 34.40 23.00
1.70 VPC 410.00 290.00 242.00 138.00 81.00 33.50 22.50
1.75 VPC 385.00 278.00 233.00 134.00 78.50 32.60 22.00
1.80 VPC 353.00 265.00 223.00 130.00 75.50 31.70 21.40
Temperature Effects on Float Life
gra vrla high rate temperature effects on float life
Temperature Effects on Capacity
gra vrla high rate temperature effects on capacity
Charge Characteristics (Cyclic)
gra vrla high rate charge characteristics
Discharge Characteristics
gra vrla high rate discharge characteristics
Self-Discharge Characteristics
gra vrla high rate self discharge characteristics
  1. Due to self-discharge characteristics of lead acid battery technologies, batteries should be charged within 6 months of storage to ensure optimum performance, prevent sulphation and permanent capacity loss.
  2. Charge profile recommendations correspond to battery voltages at 25°C (77°F). For temperatures below, adjust +5mVPC/°C (+3mVPC/°F). Temperatures above, adjust -5mVPC/°C (-3mVPC/°F). Temperature compensated charging helps ensure optimum battery runtime and life performance.
  3. Charge until battery voltage reaches 2.45VPC and hold until current tapers down to 0.01C20 amps. Battery is fully charged under these conditions and charger should be disconnected or switched to “float” voltage. For standby / float use, a constant charge voltage of 2.25-2.30VPC is also acceptable. Hold until the battery seeks its own current level and maintain itself in a fully charged condition.
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