APC BK200 UPS Backup Batteries

BatteryMart.com offers the non-OEM replacement APC BK200 Replacement UPS battery. You can buy with confidence that a replacement APC Replacement UPS battery from BatteryMart.com will have a long life at a great price.

For any BK200 or BK200B, please verify battery configuration before purchasing. To verify, open the battery door and check the number of batteries inside the unit.

  • If your unit has one battery, you will need (1) RBC2 unit (BM Part #: SLA-12V-7-F2).
  • If your unit has two batteries, you will need (1) RBC1 unit (BM Part #: SLA-6V4-5-X2).

Note: Manufacturers change battery specifications without notice. Please inspect your old batteries to verify the quantity needed, terminal and battery sizes.

6 Volt 4.5 Ah Sealed Lead Acid Rechargeable Battery - 2 Pack
Item #: SLA-6V4-5-X2  |    

6 Volt 4.5 Ah Sealed Lead Acid Rechargeable Battery - 2 Pack

6 Volt 4.5 Ah Sealed Lead Acid Rechargeable Battery - 2 Pack

Item #: SLA-6V4-5-X2
 
Voltage: 6 Volt / 4.5 Ah
• Sealed Lead Acid
• Weight: 5.40 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$23.90
Price: $23.90
QTY:
12V 7Ah SLA Battery with F2 Terminals (7.6Ah Capacity)
Item #: SLA-12V7-F2  |    

12V 7Ah SLA Battery with F2 Terminals (7.6Ah Capacity)

12V 7Ah SLA Battery with F2 Terminals (7.6Ah Capacity)

Item #: SLA-12V7-F2
 
Voltage: 12 Volt / 7.6 Ah
• Sealed Lead Acid
• Dimensions: 5.94" / 2.56" / 3.70"
• Weight: 6.40 lbs
• Warranty: 1 Year
• See All Compatible Models
Reg. Price: $21.95
Volume Price: $18.66 See Volume Price Details
QTY:
6 Volt 4.5 Ah Sealed Lead Acid Rechargeable Battery - F1 Terminals
Item #: SLA-6V4-5  |    

6 Volt 4.5 Ah Sealed Lead Acid Rechargeable Battery - F1 Terminals

6 Volt 4.5 Ah Sealed Lead Acid Rechargeable Battery - F1 Terminals

Item #: SLA-6V4-5
 
Voltage: 6 Volt / 4.5 Ah
• Sealed Lead Acid
• Dimensions: 2.76" / 1.85" / 3.98"
• Weight: 2.70 lbs
• Warranty: 1 Year
• See All Compatible Models
Reg. Price: $11.95
Volume Price: $7.65 See Volume Price Details
QTY:
12 Volt 9 Ah Sealed Lead Acid Rechargeable Battery - F2 Terminals
Item #: SLA-12V9-F2  |    

12 Volt 9 Ah Sealed Lead Acid Rechargeable Battery - F2 Terminals

12 Volt 9 Ah Sealed Lead Acid Rechargeable Battery - F2 Terminals

Item #: SLA-12V9-F2
 
Voltage: 12 Volt / 9 Ah
• Sealed Lead Acid
• Dimensions: 5.95" / 2.56" / 3.71"
• Weight: 7.00 lbs
• Warranty: 1 Year
• See All Compatible Models
Reg. Price: $24.95
Volume Price: $21.21 See Volume Price Details
QTY:
Dakota Lithium 12 Volt, 7 Ah LiFePO4 Rechargeable Battery with F2 Terminals
Item #: DLITH-12V7  |    

Dakota Lithium 12 Volt, 7 Ah LiFePO4 Rechargeable Battery with F2 Terminals

Backordered: Estimated Available August 18th, 2026

Dakota Lithium 12 Volt, 7 Ah LiFePO4 Rechargeable Battery with F2 Terminals

Item #: DLITH-12V7   |  Backordered: Estimated Available August 18th, 2026
 
Voltage: 12.8 Volt / 7 Ah
• LiFePO4
• Dimensions: 5.94" / 2.55" / 3.74"
• Weight: 2.00 lbs
• Warranty: 11 Year (Factory Direct)
Price:
$89.95
Price: $89.95
QTY:
CSB HRL1234WF2FR 12 Volt, 9 Ah Flame Retardant Sealed Lead Acid Battery
Item #: HRL1234WF2FR  |    

CSB HRL1234WF2FR 12 Volt, 9 Ah Flame Retardant Sealed Lead Acid Battery

CSB HRL1234WF2FR 12 Volt, 9 Ah Flame Retardant Sealed Lead Acid Battery

Item #: HRL1234WF2FR
 
Voltage: 12 Volt / 9 Ah
• Sealed Lead Acid
• Dimensions: 5.94" / 2.55" / 3.71"
• Weight: 7.00 lbs
• Warranty: 1 Year
• See All Compatible Models
Reg. Price: $39.95
Volume Price: $35.95 See Volume Price Details
QTY:
LiFePO4 Rechargeable Battery | 6V 5.4Ah 32.4Wh - Lead Acid Replacement, UN38.3 Passed
Item #: LF-LA6V5.4A  |    

LiFePO4 Rechargeable Battery | 6V 5.4Ah 32.4Wh - Lead Acid Replacement, UN38.3 Passed

LiFePO4 Rechargeable Battery | 6V 5.4Ah 32.4Wh - Lead Acid Replacement, UN38.3 Passed

Item #: LF-LA6V5.4A
 
Voltage: 6.4 Volt / 5.4 Ah
• LiFePO4
• Dimensions: 2.76" / 1.85" / 3.78"
• Weight: 1.30 lbs
• Warranty: 1 Year
Price:
$57.95
Price: $57.95
QTY: