Be350g, Be350g-cn Apc Back UPS Es Battery 12v 3.5Ah F1 Terminals
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
Dependable 12V 3.5Ah sealed lead-acid AGM battery designed to restore reliable backup power to your BE350G APC Back-UPS ES. Built to meet or exceed OEM standards for stable performance, safe operation, and dependable standby protection when outages occur.
Technical Specifications
Key Benefits
- Reliable Backup Power: Helps keep your BE350G APC Back-UPS ES ready to protect connected equipment during unexpected outages.
- OEM-Level Performance: Engineered to meet or exceed original equipment standards for dependable standby operation.
- Maintenance-Free AGM Design: Spill-proof sealed construction provides hassle-free use and stable output.
- Durable Build: Tough ABS casing offers vibration resistance and long-term reliability.
- Simple Replacement: Straightforward installation using your existing connectors when still in good condition.
Compatible Models
APC Back-UPS ES
Please verify your existing battery dimensions, voltage, capacity, and terminal type before ordering to ensure exact compatibility.
Replaces Part Numbers
Warranty & Returns
- 30-Day Return Policy
- 1-Year Replacement Warranty
Battery only. Cables and adapters are not included. Reuse your existing connectors if suitable and confirm terminal size before purchase.
Installation Tips
- Before removal, take a quick photo or make a note of the existing wiring configuration.
- Confirm polarity and wire colours carefully before connecting the replacement battery.
- Do not reverse polarity, as this can cause serious damage to the UPS.
- This replacement includes the battery only, so existing leads and connectors should be reused where appropriate.
- Installation is generally straightforward for most users with basic technical confidence.
Maintenance & Testing
- Expected standby service life is typically 3 to 5 years, depending on operating conditions.
- Test your UPS annually by disconnecting AC input and confirming the unit continues running on battery power.
- Store and operate the battery in a suitable environment to help maximize service life.
- Always inspect terminals and wiring for wear before reinstallation.
Durability & Safety
- Advanced AGM technology provides maintenance-free, spill-proof performance.
- ABS casing helps resist vibration and supports dependable long-term use.
- Stable output helps your UPS system perform safely and efficiently when backup power is needed most.
Important Notes
- Please compare the dimensions and specifications of your current battery before placing your order.
- This quick compatibility check helps avoid delays and ensures the correct fit the first time.
- For detailed technical data, refer to the CB123 specification sheet available on our website.
Reliable Backup Power You Can Trust
Choose the RBC35-B249 replacement battery to restore dependable backup performance to your BE350G APC Back-UPS ES. With robust AGM construction, trusted 12V 3.5Ah output, and solid warranty support, it is a practical and reliable solution for keeping your equipment protected.
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🔋 What’s mAh All About?
🔋 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
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!!
How to Look after your new lithium battery!!
See how to look after your battery if its lithium Lithium Care
Delivery and Shipping
Delivery and Shipping
See our shipping policy and details at this link Shipping Details
ADVISORY:- ABOUT OUR IMAGES
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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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Technical Specifications
| Product Details | |
|---|---|
| Product Model | Be350g, Be350g-cn APC Back-UPS ES Battery |
| Brand | CB Range |
| Category | UPS Battery |
| SKU | RBC35-B249 |
| Individual Battery Model | RBC35 |
| Compatible UPS Series | BE350G, BE350G-CN APC Back-UPS ES |
| Battery Quantity | 1 |
| Battery Chemistry | AGM |
| Voltage | 12V |
| Capacity | 3.5Ah |
| Terminal Type | T1 |
| Gross Weight | 1.35 kg / 2.98 lbs |
| Battery Dimensions | |
| Length | 5.24 inches / 133 mm |
| Width | 2.64 inches / 67 mm |
| Height | 2.36 inches / 60 mm |
| Height to Top of Terminal | 2.60 inches / 66 mm |
| Typical Use | |
| Application | Replacement backup battery for compatible APC Back-UPS ES units requiring a 12V 3.5Ah AGM battery with T1 terminals. |
OEM Battery Cross Reference
Payment & Security
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