Casil
12v 8ah Battery for APC Back-UPS ES 750 – Compatible with BE750G, Smart UPS 750, SMT750, SUA750 – 12V SLA Battery for UPS ES 750 Backup Power Supply
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Bottom line: The 12v 8ah Battery for APC Back-UPS ES 750 – Compatible with BE750G, Smart UPS 750, SMT750, SUA750 – 12V SLA Battery for UPS ES 750 Backup Power Supply is a niche pick — read recent reviews before buying in the power protection category, priced around $23.25. Read recent reviews carefully before committing.
SpecPicks Verdict
SpecPicks classifies Casil 12v 8ah Battery for APC Back-UPS ES 750 – Compatible with… as a niche pick — read recent reviews before buying in the power protection category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Casil's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for power protection of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Backed by Casil's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 🔋 Reliable Replacement for APC UPS 750 Models – Designed to replace the original battery in APC Back-UPS ES 750, Smart UPS 750, and other 750VA uninterruptible power supply units.
- ✅ Compatible with Multiple APC Models – Fully compatible with APC BE750G, SMT750, SUA750, and UPS ES 750 systems. Restores runtime and backup power reliability.
- 🛡️ 12V Sealed Lead Acid (SLA) Design – Maintenance-free AGM battery offers leak-proof, spill-proof operation with high discharge efficiency for home and office backup systems.
- ⚡ Rechargeable & Long-Lasting Performance – Built for standby and deep-cycle use. Quick recharge time and dependable power delivery for surge protection and battery backup.
- 📐 Easy Installation & Secure Fit – Direct-fit size and standard terminals make for a hassle-free drop-in replacement. Dimensions: 5.94" x 2.56" x 3.7".
Full Specifications
| Brand | Casil |
|---|---|
| Weight | 750g |
| Amperage | 8 Amps |
| Model Name | 12V 8AH ES 750 |
| Unit Count | 1.0 Count |
| Reusability | Rechargeable |
| Model Number | CA1280-1PC |
| Built-In Media | Battery |
| Item Type Name | lead_acid_battery |
| Item Dimensions | 5.94 x 2.56 x 3.94 inches |
| Battery Capacity | 8 Amp Hours |
| Battery Cell Type | Lead Acid |
| Number of Batteries | 1 12V batteries required. (included) |
| Warranty Description | 1 Year prorated warranty |
Ready to buy?
Casil 12v 8ah Battery for APC Back-UPS ES 750 – Compatible with BE750G, Smart UPS 750, SMT750, SUA750 – 12V SLA Battery for UPS ES 750 Backup Power Supply is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Related Power Protection
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- How to Build a Windows 98 Retro PC in 2026
- Best 1440p Gaming GPUs in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Retro Handhelds in 2026 — From $35 to $500
More reviews from the SpecPicks archive
Browse all reviews →- RTX 3080 vs RTX 5080 — is it time to upgrade?
- Logitech G502 HERO vs G29: Which Logitech Peripheral Belongs in Your Sim Rig?
- Intelligence Index v4.1 Goes Agentic: Can a 12GB RTX 3060 Keep Up Locally?
- Self-Hosting Jellyfin on a Ryzen 5 5600G: 4K Transcode on the Cheap
- Best Wired Gaming Headset Under $50 for PC and Console in 2026
- Qwen3 MTP on a Single RTX 3060 12GB: What the New Benchmark Numbers Actually Mean
- Best CPU for Streaming and Gaming Under $300 (2026)
- Sound Blaster Audigy 2 ZS vs Live! 5.1: WinXP Gaming Audio in 2026
- Best Budget Gaming CPU Under $250 in 2026
- Sound Blaster Live! Restoration Guide: Period-Correct Audigy FX Bridge for Win98 Builds
- Period-Correct Sound for a Modern Retro PC: The Sound Blaster G6 and the EAX Legacy
- Building a 2002 Windows XP Gaming Rig: GeForce 4 Ti, Sound BlasterX G6, CompactFlash Boot
- Active Quake 3 and OpenArena Servers in 2026 — How to Find and Join Them
- Anthropic Backs Off Billing Overhaul as Price War Heats Up
- Best SATA SSD to Upgrade a PS4 Pro in 2026: Faster Loads on a Budget
- Blue Yeti vs HyperX QuadCast 2 S: Which USB Mic Wins for Streaming in 2026?
- Which GPU for Which LLM? A Per-Model Hardware Cheat Sheet
- Self-Host Immich on a Raspberry Pi 4 8GB: SSD Boot, Power Draw, and Real Performance
- Revive an Old Payphone with a Raspberry Pi Zero 2W
- Samsung 256GB microSD Drops to $47.99 — 40% Off Storage Deal
- LongCat-2.0: A Frontier Model Trained Without Nvidia GPUs
- Adafruit's Cyberdeck Raspberry Pi Music Workstation Guide Lands
- Throw a Modern Retro LAN Party in 2026: The Hardware Checklist
- Best 4K Gaming Monitors Under $600 in 2026