NPP

NPP HR1224W F2-12V 6Ah Rechargeable AGM Battery 144Watts 24Watt Cell Sealed Lead Acid UPS Batteries Replacement for NS1250

4.4(373)

62+ bought in the past month

$31.49$34.99

About this item

  • 【Engineered for High-Rate Discharge】 Delivers 24W per cell constant power (15min-rate at 25°C) and 90A peak current (5 sec) with only 19mΩ internal resistance. Up to 30% higher output power than standard 6Ah batteries ensures reliable small UPS units (≤800VA) requiring instant output and stable voltage during transitions.
  • 【Precise Fit & High Power Density】 NPP HR1224 features compact size 5.94"×2.01"×3.90" and quick plug-and-play installation with F2 terminals, replacing most 12V 6Ah 6.5Ah batteries such APC Back-UPS NS1250, CP800AVR, and BE750G2.
  • 【Premium AGM & Safety Construction】 Non-spillable VRLA design with FR ABS casing and AGM separators, Maintenance-free and safe for indoor installation. Wide Operating range (-15°C to 50°C) and stable float voltage (13.6–13.8V) ensures long-term 24/7 standby reliability for security and monitoring installations.
  • 【Multi-Application Compatibility】Compatible with Honeywell Vista 20P, DSC PC1832, and GE Concord 4 systems. Perfect for LiftMaster 485LM, Chamberlain 940EV, and Dual-Lite EVHC12V emergency lighting units. Provides safe, high-rate output during short-duration discharge, supporting critical backup applications.
  • 【NPP Brand Quality & Certification】 NPP is a top battery manufacturer with a total of 6 mega-factories around the world. UL, CE, IEC, ISO14001, ISO19001, OHSAS18000, TLC certified. Each battery tested for voltage stability and capacity retention (≥91% after 3 months). Designed for 3–5 years float life, ensuring consistent performance for backup systems.
$31.49
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Product details

Number of Batteries1 12V batteries required.
BrandNPP
Battery Cell CompositionLead Acid
Battery Capacity6 Amp Hours
Recommended Uses For ProductUPS

Technical specifications

product_dimensions5.94 x 2.01 x 3.7 inches
item_model_numberHR1224W F2 New
batteries1 12V batteries required.
best_sellers_rank#96,132 in Health & Household ( See Top 100 in Health & Household ) #195 in 12V Batteries
date_first_availableNovember 24, 2025
manufacturerNPP

Product videos

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Customer reviews

4.4373 ratings

Customers say

Customers find the battery works well as a replacement for UPS systems and is easy to install.

★★★★★

UPS battery replacement

Jeffrey M Brooks—December 6, 2025

Works as it should in a UPS. Read more

★★★★★

Good replacement for APC RBC154 Battery

21TechShopper—December 12, 2025

I have an APC Back-UPS 675 battery backup unit. It is 7 years old, and it started beeping. I figured it was time for a new battery. This model has a user replaceable battery, model RBC154. it's rated at 12V 6.5Ah. The battery size is not common. Most batteries for UPS are 2.56" deep, but this one is only 2.01" deep. The original battery costs almost as a new UPS unit. I found very few replacement batteries from other brands that have the same dimensions. To my understanding, NPP is actually a battery manufacturer. Some of the batteries I found from other brands had NPP in the model name, so I guess that they were made by NPP. The battery I received was made in Vietnam. It was left outside my door, and the weather here is freezing cold now. I opened the box and let the battery stay at room temperature for 24 hours before using it. Installation was straightforward. The connectors were identical to the original battery (F1 type). It was a simple swap. I let the UPS charge for 12 hours before plugging anything to it. I then plugged an M4 Mac Mini to one of the power outlets with battery backup. Next I connected a USB B to C cable from the UPS to the Mac Mini for data communication. The Mac Mini immediately recognized the UPS. I configured it to shut down after 3 minutes in case of a power outage. I did a little test by unplugging the UPS from the wall outlet. After 3 minutes the Mac Mini shut down safely. Since I just received this battery, I can't comment about the longevity. However, so far it's been a perfect replacement for the original at a fraction of the cost. Read more

★★★★★

Priced right and fits perfect

R ABBOTT—July 31, 2025

Needed to replace the battery in a old ups unit. The size on the old battery was smaller at 2.01 inches. The other replacement battery's the correct size were priced much higher. This one was priced right and fit perfect. Time will tell on the quality, but works and received on time and in good condition. Read more

★★★★★

Great Replacement Battery for UPS Systems

Techguru—June 22, 2025

Let me cut to the chase — if you’re looking for a 12V replacement battery for your UPS for this specific size, this NPP HR1224W is a solid pick. After researching through countless options, I landed on this one because it has decent reviews, the right size, and a much better price than the OEM options. 1. It’s for UPS systems that need a 12V sealed lead acid battery that is 5.94 x 2.01 x 3.87 inches. 2. It is the same size as the 12V 6Ah RT1250B battery used by some APC and SKE models. 3. I’m currently using it in my APC BE600M1 600VA/330W UPS and it’s working great so far. It might have slightly less capacity than the original, but for the price difference, it’s a great trade-off. 4. It also physically fits in the SKE VL425 425VA/240W UPS, though I haven’t needed to replace that battery yet. Bottom line: if your UPS needs a 12V 6Ah replacement with dimensions 5.94 x 2.01 x 3.87 inches. This one was a perfect fit for mine. Highly recommend! Read more

★☆☆☆☆

Failed in nine months.

kamazon—December 27, 2025

One of the two NPP HR1234W batteries failed in 9 months in a UPS. The older batches used to be very good lasting 3-5 years as expected. I have asked the vendor to see if they will replace it. Not sure if I can recommend them anymore. Read more

★★★★☆

Size of container...! And battery rating!

Donna U.—August 5, 2025

Battery size is good. The size is accurate for this unit. Packaging was OK... This model has 1/4 " terminals. Too soon to comment on performance. Rating is higher at 6.0 AH. Read more

★★★★★

A perfect fit for my XC625

JoeM—July 13, 2025

Some other products which purport to be replacements for the RT1255H are in fact slightly larger in at least 1 dimension. This is an exact match. It arrived quickly and was fully charged. It was simple to install and worked 1st time. Read more

★★★★★

Good Battery

C. Maslin—January 6, 2026

Alarm system battery replacement. Worked. Read more

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