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CB Range  |  SKU: RBC35-B249

Be350g, Be350g-cn Apc Back UPS Es Battery 12v 3.5Ah F1 Terminals

🚀 In stock and ready for shipment from our warehouse. Pickup NOT available for this product
Sale price $26.99 CAD Regular price $29.99
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Note: The 3.5Ah battery will provide approximately 16.67% longer runtime than the standard 3.0Ah version. Despite its higher capacity, it will replace the original battery perfectly and will fit and charge without any issues.
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Just a Quick Reminder!
Please double-check that the batteries you're ordering match the ones in your unit before completing your purchase.

Please note: We only supply the batteries shown in the images. Product images of devices are shown for reference only.

RBC35-B249 Replacement Battery for BE350G APC Back-UPS ES – 12V 3.5Ah AGM

Restore dependable backup power to your BE350G APC Back-UPS ES with this high-quality 12V 3.5Ah sealed AGM replacement battery. Designed for reliable standby performance, maintenance-free operation, and straightforward installation using your existing battery connectors.

12V 3.5Ah AGM Sealed Lead Acid T1 Terminal 1-Year Warranty

Technical Specifications

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Replacement Code RBC35-B249
Category Backup Power Battery
Battery Type Sealed Lead Acid AGM
Voltage 12V
Capacity 3.5Ah
Connector T1
Pack Quantity 1 Piece
Colour Black
Weight 2.98 lbs / 1.35 kg
Length 5.24 in / 133 mm
Width 2.64 in / 67 mm
Height 2.60 in / 66 mm
Overall Height 2.76 in / 70 mm
Warranty 1 Year

Why Choose This Product

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  • Designed as a replacement battery for the APC Back-UPS ES BE350G.
  • Reliable 12V 3.5Ah output for dependable standby protection.
  • Maintenance-free sealed AGM construction with spill-proof design.
  • Engineered to meet or exceed OEM performance standards.
  • Durable ABS casing helps resist vibration and everyday use.
  • Simple installation using existing connectors where suitable.

Compatible Models

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APC Back-UPS ES BE350G

Please verify your existing battery dimensions, voltage, capacity, and terminal type before ordering to ensure exact compatibility.

Compatible Part Numbers

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RBC35-B249

Product Highlights

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  • 12V 3.5Ah sealed AGM backup power battery.
  • Maintenance-free, spill-proof construction.
  • T1 terminal configuration.
  • Reliable standby performance for UPS applications.
  • Battery supplied only; reuse existing connectors where appropriate.
  • Designed for dependable long-term service.

FAQs

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Does this battery fit the APC BE350G?

Yes. It is designed as a replacement battery for the APC Back-UPS ES BE350G.

Are cables or connectors included?

No. The battery only is supplied. Existing leads and connectors should be reused where appropriate.

What terminal does this battery use?

This battery is fitted with T1 terminals.

How long does the battery typically last?

Typical standby service life is approximately 3 to 5 years depending on operating conditions.

Warranty & Returns

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  • 30-Day Return Policy.
  • 1-Year Replacement Warranty.
  • Battery only. Cables and adapters are not included.
  • Reuse existing connectors where suitable and confirm terminal size before installation.

Closing Section

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Restore reliable backup protection with this RBC35-B249 replacement battery. Built with durable sealed AGM technology, dependable 12V 3.5Ah performance, and backed by a 1-year replacement warranty, it provides a practical solution for keeping your APC Back-UPS ES operating when you need it most.

Always compare your existing battery dimensions, voltage, capacity, and terminal type before ordering. Confirm wiring polarity during installation and reuse existing connectors where appropriate.

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Please note: We reserve the right to send heavier items by transport truck if the carrier's maximum weight per package is exceeded or if we consider it too risky to place with a courier due to the possibility of damage occurring.

🔋 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

Delivery and Shipping

See our shipping policy and details at this link Shipping Details

📸 Send Us Your Battery Image

Not sure which replacement battery you need? Just snap a Photo / Video of your current battery and send it our way! Our team will quickly identify the exact match and recommend the perfect replacement model — no guesswork, no hassle.

🔍 Fast, Expert Assistance

We’ve helped thousands of customers find the right battery — let us do the same for you. Whether it’s for an alarm system, emergency light, or industrial equipment, we’ve got you covered.

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