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CSB  |  SKU: HRL1225W

CSB HRL1225W Battery, 12V, 25W 5.8Ah with F2 terminals

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Sale price $40.99 CAD Regular price $44.99
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Compatibility Reminder:
Please make sure that the termination style shown in this listing will work for your application, as connector types can vary between models.

It’s also important to confirm that the dimensions of our suggested replacement match the battery you’re replacing to ensure a proper fit in your device or battery compartment.
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Please double-check that the batteries you're ordering match the ones in your unit before completing your purchase. We want to make sure you get exactly what you need!

CSB HRL 1225W – 12V 25W Sealed Lead Acid Battery | Long Life AGM VRLA Power

High-rate 12V AGM VRLA sealed lead acid battery designed for standby power systems, UPS units, emergency lighting, telecom, and security applications. A practical replacement for the difficult-to-find CSB HR1227W, with only a negligible reduction in runtime.

12V Output 25W @ 15-Min Rate AGM VRLA F2 Terminal Up to 8-Year Design Life

Technical Specifications

ModelCSB HRL 1225W
Battery TypeSealed Lead Acid (AGM VRLA)
Nominal Voltage12V
Nominal Capacity25W @ 15-min rate to 1.67V/cell @ 25℃
Cell Configuration6 Cells
Terminal TypeF2 (Faston Tab 250)
Internal ResistanceApprox. 19.60 mΩ
Max Charge Current2.5A
Max Discharge Current130A (5 sec)
Max Short Circuit328A
WeightApprox. 1.95kg / 4.30 lbs
Container MaterialABS (UL 94-HB), V0 version available

Why This Battery Is a Strong Choice

  • Direct high-rate standby solution: built for UPS, alarm, emergency lighting, and telecom systems.
  • Great replacement option: a practical substitute for the hard-to-find CSB HR1227W.
  • Maintenance-free AGM design: sealed construction with no water top-up required.
  • Long service life: up to 8 years design life in standby use at 25℃.
  • Efficient gas recombination: up to 99% efficiency helps reduce electrolyte loss.
  • Storage ready: under 10% self-discharge after 90 days at 25℃.
  • Certified quality: compliant with IEC 61056-1/2:2012, UL 1989, ISO 9001 and ISO 14001.
Ideal for systems that need dependable compact backup power with strong short-duration discharge performance.

Dimensions

Physical Size

Length (L)90.0 ±1.0mm / 3.54 ±0.04"
Width (W)70.0 ±1.0mm / 2.76 ±0.04"
Height (h)101.8 ±1.5mm / 4.01 ±0.06"
Overall Height (H)106.1 ±1.5mm / 4.18 ±0.06"

Charging

Recommended Charge Values

Float Charge13.5 – 13.8V at 25℃
Equalization / Cycle14.4 – 15.0V at 25℃
Max Charge Current2.5A

Construction

Terminal & Case Details

Terminal TypeF2 (Faston Tab 250)
Container MaterialABS (UL 94-HB)
Optional VariantFlame-retardant version available (UL 94-V0)

Operating Temperature Range

Mode Temperature
Discharge -15℃ to 50℃ / 5℉ to 122℉
Charge -15℃ to 40℃ / 5℉ to 104℉
Storage -15℃ to 40℃ / 5℉ to 104℉

Typical Applications

UPS Systems Emergency Lighting Telecom Equipment Security Systems Standby Backup High-Rate Discharge Use

Replacement / Cross Reference

CSB HR1227W CSB HRL 1225W
Always compare dimensions, terminal type, and required discharge characteristics before ordering.

Constant Power Discharge (W) @ 25℃

F.V. (V) 2 Min 5 Min 10 Min 30 Min 60 Min
1.60 572 336 212 90.0 51.1
1.67 539 325 208 89.2 50.7
1.75 453 302 199 87.1 49.8
1.80 403 280 188 84.3 48.5
1.85 360 252 172 79.3 45.9
Values shown at 25℃. For current manufacturer data, refer to the official CSB documentation.

Reliable Compact Backup Power

The CSB HRL 1225W is a dependable compact AGM VRLA battery engineered for standby and high-rate discharge performance. It is especially useful when replacing the harder-to-source CSB HR1227W, offering an excellent balance of size, fit, and reliable backup capability for critical systems.

Need help with compatibility, quantity pricing, or technical support? Contact our team before ordering.

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🔋 What’s mAh All About?

mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨

Before ordering please read

Ensure the original battery model number is mentioned in our product description and verify that your device model number is also listed in the description.

How to Look after your new lithium battery!!

See how to look after your battery if its lithium Lithium Care

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Technical Specifications

CSB HRL 1225W – 12V 25W High Rate VRLA AGM Battery
Battery Details
Category Sealed Lead Acid Battery
Battery Type VRLA AGM
Nominal Voltage 12V
Nominal Capacity 25W at 15-minute rate to 1.67V per cell at 25℃
Design Life Up to 8 years (Eurobat: 6–9 years)
Charge Voltage Float: 13.5–13.8V | Equalization: 14.4–15.0V at 25℃
Max Discharge Current 130A (5 sec)
Internal Resistance Approx. 19.60 mΩ
Max Short Circuit Current 328A
Max Charge Current 2.5A
Self-Discharge <10% after 90 days at 25℃
Operating Temperature Discharge: -15℃ to 50℃
Charge / Storage: -15℃ to 40℃
Certifications IEC 61056-1/2:2012, UL 1989, ISO 9001, ISO 14001
Color Black
Dimensions 90.0 x 70.0 x 101.8mm (L x W x H)
Overall Height 106.1mm
Net Weight 1.95 kg / 4.30 lbs
Terminal Type F2 (Faston Tab 250)
Container Material ABS (UL 94-HB), Flame-Retardant UL 94-V0 available
Brand Compatibility
Fits Brand CSB Battery
Confirmed Model HRL 1225W
Replacement Type Direct CSB OEM Replacement
Compact 12V high-rate AGM battery designed for standby power systems, emergency backup equipment, telecom, and other applications requiring dependable short-duration power delivery.
Latest Update: 18 March 2026

OEM Battery Cross Reference

View confirmed cross-reference entries 1 confirmed match
Brand Original Battery Replacement Notes
CSB Battery HRL 1225W HRL 1225W Direct OEM model replacement
This section includes only confirmed cross-reference data. Additional entries can be added in the same expandable table structure as verified model information becomes available.

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