Casil
Casil 12v 8ah Battery for APC Back-UPS ES 750
Bottom line: The Casil 12v 8ah Battery for APC Back-UPS ES 750: Direct drop-in for APC BE750G, SMT750, SUA750 and Back-UPS ES 750; main trade-off: 8Ah cell only, so runtime matches OEM rather than extending it.
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Pros & Cons
Pros
- ✓ Direct drop-in for APC BE750G, SMT750, SUA750 and Back-UPS ES 750
- ✓ Sealed AGM design is spill-proof and needs no watering or venting
- ✓ 5.94 x 2.56 x 3.7 in footprint matches the OEM tray exactly
- ✓ Standard terminals accept the stock APC harness without adapters
Cons
- ✗ 8Ah cell only, so runtime matches OEM rather than extending it
- ✗ Casil is an aftermarket brand, not an APC-branded OEM battery
- ✗ Single battery ships alone; SMT750 rebuilds may need a matched pair
- ✗ Listing omits cycle-life and shelf-life figures for standby duty
SpecPicks Verdict
SpecPicks scored Casil 12v 8ah Battery for APC Back-UPS ES 750 using a rating × review-volume × price-fit model applied to published specs and reviews across the power protection category. Casil's power protection lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
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 |
| Compatible Phone Models | Back-UPS ES BE750G, BE750BB, BE750G-CN, BE750G-GR, Back-UPS XS BX750MI, BX750CI, Smart-UPS Series SMT750, SMT750RM2U, SUA750, SUA750RM2U |
| Battery Cell Composition | Lead Acid |
| Full listing title | 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 |
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 listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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