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CSB HR1227W 12V 5AH F2 Terminal High-Rate SLA Battery
CSB HR1227W F2 Battery - 12V High Rate VRLA, 27 Watts Per Cell
Warranty
The Strong Small Brick
- Sealed VRLA-AGM construction - recombination rated up to 99% by CSB, no maintenance, any mounting orientation.
- IEC 61056-1/2:2012 built, UL1973 Listed (MH66728), UL1989 Recognized (MH14533) - documented for facility and fire-marshal review.
- Wide discharge window - rated for discharge from -15°C up to +50°C when the install is less than ideal.
Technical Specifications
| CSB HR1227W F2 Specifications | |
|---|---|
| Part Number | HR1227W F2 (also searched as HR1227WF2, HR 1227W F2, CSB HR1227W) |
| Battery Type | VRLA-AGM, high rate, top terminal |
| Nominal Voltage | 12V |
| Power Rating, 15-minute | 27.0 watts per cell to 1.67 VPC at 77°F (162 W per battery) |
| Power Rating, 5-minute | 53.0 watts per cell to 1.67 VPC |
| Max Discharge Current | 130 A (F2 build; the F1 build is rated 100 A) |
| Short Circuit Current | 424 A |
| Internal Resistance | Approx. 19.9 milliohms |
| Terminal Type | F2 Faston tab, 0.250 inch |
| Length | 3.54 inches (90.0 mm) |
| Width | 2.76 inches (70.0 mm) |
| Height | 4.18 inches (106.1 mm) |
| Weight | 4.34 lbs (1.97 kg) |
| Container | ABS (UL 94-HB); flame-retardant 94-V0 build available on request |
| Operating Temperature | Discharge -15°C to +50°C; charge and storage -15°C to +40°C |
| Float Charging Voltage | 13.5 to 13.8 Vdc per battery at 77°F |
| Design Life | Up to 5 years standby at 77°F (CSB) |
| Warranty | 1 year (CSB) |
| Country of Origin | Vietnam |
Where This Battery Is Used
- Compact UPS units carrying real load - the small-case models that protect network gear rather than a single desktop.
- Multi-battery trays on the small footprint - designs that stack this case for voltage and runtime.
- Telecom and security equipment holdover - short-window power where cabinet space is fixed.
Ordering and Shipping
Frequently Asked Questions
Why does a small UPS need a high-rate battery at all?
Because of how the rating is earned. A battery rated for 20-hour discharges delivers a shrinking fraction of its energy as the draw gets faster, and a UPS empties its battery in minutes. The HR series is rated the way the duty runs, in watts per cell over 15 minutes, so the number on the label is the number the inverter gets. In this case size, that is the difference between the runtime you calculated and the runtime you get.
My old battery has narrower terminal tabs. Is that a problem?
The narrow tab is the 0.187-inch F1; this listing carries the 0.250-inch F2. The two do not mate without an adapter, and an adapter adds a resistance point right where the current is highest. CSB builds this model in an F1 version, rated 100 A maximum discharge, and we quote it on request. Match what your connector takes and say which tab you need on the quote.
Can the HR1227W live in a hot closet?
It is rated to discharge at ambient temperatures up to 122°F, so it will do its job in the heat. Living there is a different matter: every VRLA battery ages faster above 77°F, and the design life figure assumes that cooler number. If the closet runs hot year round, plan a shorter replacement cycle or move air through the space, whichever costs the site less.
Send the quantity, your delivery ZIP and your requested-by date. A specialist confirms the terminal build, availability, the warranty term and shipping in writing, with no obligation to buy.
Call 1-877-775-4381 · battery specialists, not a call centerWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov (State of California only).
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