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CSB HR1224W 12V high rate AGM UPS battery, F2 Faston tab, 27W per cell
CSB HR1224W 12V high rate AGM UPS battery, F2 Faston tab, 27W per cell

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CSB HR1224W 12V 6.4AH High-Rate SLA Battery - AGM Sealed Lead Acid

$25.95
SKU: HR1224W
Availability: Ships in 24 to 48 hours
Shipping: Free shipping on orders $75 and up
Voltage: 12
Capacity: 6.4 Ah (20-hour rate, CSB price list); 27.0 W per cell (15-min to 1.67 VPC at 25C)
Chemistry: AGM VRLA, pure lead construction
Terminal: F2 Faston tab 0.250 in; F1 option available (max discharge 100 A)
Features: High rate series, group M6, flame retardant case optional
Dimensions: 5.94 x 2.01 x 3.89 in (L x W x H)
Design Life: Up to 5 years standby at 25C; Eurobat 20C 3 to 5 years
CSB HR1224W 12V 6.4AH High-Rate SLA Battery - AGM Sealed Lead Acid

CSB HR1224W 12V 6.4AH High-Rate SLA Battery - AGM Sealed Lead Acid

$25.95

Out of stock

Description  

CSB HR1224W Battery - 12V 27W Per Cell High Rate AGM, F2

The HR1224W is a small high rate brick, and the figure that decides whether it holds a desktop or rack UPS through a transfer is 27.0 watts per cell at the 15 minute rate to 1.67 volts per cell at 25°C, which is 162 watts across the block. That number is worth pausing on, because the label says 24. CSB's own datasheet measures 27.0, a margin of 12.50 percent in your favor and the second widest understatement anywhere in the HR range. It also puts this part level with the HR1227W, which measures the same 27.0 at fifteen minutes and gives up ground at five, where the HR1224W delivers 54.8 watts per cell against 53.0. What separates the two is shape and fault current rather than output: this case is long and narrow at 5.94 by 2.01 inches standing 3.89 inches tall, weighs 4.30 lbs, and carries the F2 Faston tab.

Warranty

Warranty. The CSB term on the HR High Rate series is 1 year. Design life is a separate figure: up to 5 years in standby service at 25°C (77°F), and 3 to 5 years on the Eurobat 20°C basis for standard commercial duty. Country of origin is Vietnam. Terms are confirmed in writing with your quote.

A Label That Understates the Block

27.0 watts per cell at 15 minutes
To 1.67 volts per cell at 25°C, or 162 watts across the block, against a part number that claims 24.
54.8 watts per cell at 5 minutes
329 watts across the block, and the highest five minute figure of any CSB brick in this physical class.
2.01 inches wide
A long narrow case where most bricks of this capacity run squarer, which is what lets it drop into a slot a wider block will not enter.
  • 6.4 Ah at the 20 hour rate - a price list figure only; CSB publishes no amp hour row on the datasheet for this part, because a small UPS empties the block long before twenty hours are up.
  • 13.5 amps at the 15 minute rate - to 1.67 volts per cell, rising to 27.4 amps over 5 minutes and 18.0 amps over 10.
  • 130 amps maximum discharge current - on the F2 tab; CSB's datasheet notes that the F1 terminal option drops that ceiling to 100 amps, so the terminal choice changes the rating.
  • 2.40 amps maximum charge current - a low recharge ceiling, which is what stretches the recovery window after a deep event on a small charger.
  • Flame retardant case is optional here - the price list lists this part as HR 1224WF2F1 with the 94-V0 case available at a surcharge rather than standard, unlike the larger HR1290WFR and HR12120WFR.

Technical Specifications

CSB HR1224W Specifications
Part NumberHR1224W (also written HR 1224W, HR1224WF2, HR1224WF2F1 and hr1224w; the price list orders it as HR 1224WF2F1, where F2F1 describes the polarized terminal pair)
SeriesHR, High Rate, 12 volt top terminal
Battery TypeAGM, valve regulated lead acid (VRLA), pure lead construction
Nominal Voltage12V
Watts Per Cell, 15 Minutes27.0 W to 1.67 VPC at 25°C (162 W per block)
Watts Per Cell, 5 Minutes54.8 W to 1.67 VPC at 25°C (329 W per block)
Watts Per Cell, 30 SecondsNot published by CSB for the HR range
Capacity6.4 Ah at the 20 hour rate (CSB price list)
Discharge Current, 15 Minutes13.5 A to 1.67 VPC at 25°C
Discharge Current, 5 Minutes27.4 A to 1.67 VPC at 25°C
Maximum Charge Current2.40 A
Maximum Discharge Current130 A on the F2 tab; 100 A with the F1 terminal option
Short Circuit Current260 A
Internal ResistanceApproximately 20.6 milliohms
Terminal TypeF2 Faston tab, 0.250 inch; F1 available as an option
Length5.94 ± 0.08 inches (150.9 ± 2.0 mm)
Width2.01 ± 0.04 inches (51.0 ± 1.0 mm)
Height3.89 ± 0.04 inches (98.6 ± 1.0 mm)
Weight4.30 lbs (1.95 kg)
BCI Group SizeM6 (CSB price list)
Float Charging Voltage13.5 to 13.8 VDC per battery at 25°C (77°F)
Equalization Charging Voltage14.4 to 15.0 VDC per battery at 25°C (77°F)
Operating TemperatureNominal 25°C (77°F); discharge -15°C to 50°C (5°F to 122°F); charge and storage -15°C to 40°C (5°F to 104°F)
Self DischargeLess than 10 percent after 90 days at 25°C, storable up to 6 months at that temperature; a full recharge is required before the block goes into service
Container MaterialABS (UL 94-HB); the flame retardant 94-V0 case is available on request and the CSB price list prices it as a surcharged option on this part rather than standard
StandardsIEC 61056-1/2:2012; UL1973 Listed (MH66728); UL1989 Recognized (MH14533); TUV NORD to ISO 9001:2015
Design LifeUp to 5 years in standby service at 25°C; 3 to 5 years on the Eurobat 20°C basis, standard commercial
Warranty1 year (CSB, HR High Rate series)
Country of OriginVietnam
Technical Documentation
CSB HR1224W datasheet, 2026 (PDF)

Where This Battery Is Used

  • Narrow-slot UPS trays - enclosures laid out around a 2 inch cell width where a squarer brick of the same capacity will not seat.
  • Multi-battery rack UPS strings - designs that stack several small blocks in series to reach 48 or 96 volts across a shallow tray.
  • Emergency lighting and security panels - standby duty at float for years, then a short heavy pull when the mains drop.

Ordering and Freight

At 4.30 lbs these move by parcel carrier at any sensible count, and tray quantities palletize once the order gets large. Send the quantity, your delivery ZIP and the date it has to be on site, and a specialist returns volume pricing, lead time and freight in writing in 24 to 48 hours. Say which terminal you need, because the F1 option changes the discharge rating and is ordered as a different build.

Frequently Asked Questions

This and the HR1227W both measure 27.0 watts per cell. How do I choose between them?

On case shape and on fault current, since the fifteen minute output is a tie. This block is 5.94 by 2.01 by 3.89 inches; the HR1227W is 3.54 by 2.76 by 4.18, so one is long and thin and the other is short and squat, and the tray usually decides. At the five minute rate this part pulls ahead slightly at 54.8 watts per cell against 53.0. The HR1227W answers back with 424 amps of short circuit current against 260 and marginally lower internal resistance. Match the footprint first, then check the fault figure against your protective device.

Will it fit a tray built for a squarer brick of the same capacity?

Only if the slot is long enough. This case gives up width to gain length, so it slides into a 2 inch channel that a 2.76 inch block cannot enter, and it needs 5.94 inches of run to do it. Height is the easy one at 3.89 inches. Measure the slot in all three directions and send the numbers with your quote request, and the fit gets confirmed against CSB's drawing before anything ships.

Why is the short circuit current lower than on the HR1227W?

Internal resistance and terminal design set that figure, and this part carries approximately 20.6 milliohms against the HR1227W's 19.9. A small difference in resistance moves fault current a long way, which is how 260 amps and 424 amps end up on two blocks that deliver the same watts over fifteen minutes. Short circuit current matters for sizing fusing and disconnects. It says nothing about how long the battery will carry your load.

Does the 6.4 amp hour rating tell me anything useful for UPS duty?

Very little on its own. Amp hours are measured over 20 hours at a gentle current, and a UPS empties its battery in minutes. That is why CSB rates the HR series in watts per cell at 15 and 5 minutes and why the 20 hour figure appears only in the price list. Use 27.0 watts per cell, or 162 watts across the block, when you size against a load. Keep the 6.4 Ah for matching a replacement to whatever the old label said.

Same output, different case: CSB HR1227W27.0 watts per cell at 15 minutes in a 3.54 by 2.76 inch block, with 424 amps of short circuit current.
Matching a replacement to a UPS tray?

Send the slot dimensions, the terminal type on the old block and the part number printed on it. A specialist confirms the fit against CSB's drawing and quotes it with lead time in writing.

Call 1-877-775-4381  ·  battery specialists, not a call center

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov (State of California only).

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