【Ture Capacity】56V 2.5AH Battery Compatible for EGO BA2800 BA4200 BA4200T BA1400 BA1400T EGBA140 LM2100 BA2240 BA2800 BA2800T BA1120E Lawn Mower Battery String Trimmer Weed Eater Lithium-Ion Battery

What It Is

This is a 56V 2.5Ah lithium-ion replacement battery designed for EGO outdoor power equipment—lawn mowers, string trimmers, blowers, and other tools in the EGO 56V Arc-Lithium platform. It’s an aftermarket alternative to the OEM EGO BA2800, suitable for light-to-medium yard work.

Fitment & Compatibility

• Voltage & Chemistry: Must be 56V lithium-ion—this one is. Do not use with 40V or 80V tools.
• OEM Cross-Reference: Replaces EGO models BA2800, BA4200, BA4200T, BA1400, BA1400T, EGBA140, BA2240, BA2800T, BA1120E. Also fits tools like LM2100 mower, BA2800 trimmer, and BA4200 blower.
• Physical Check: Measure battery slot depth and width (approx. 5.5” x 3.5” x 4.5”). Ensure your tool’s battery bay accommodates this size—some older EGO tools have tighter compartments.
• Tool Compatibility: Works with any EGO 56V tool that accepts the standard slide-in battery (most models 2013+). Excludes older 56V tools with proprietary connectors (rare, but verify).
• Aftermarket Note: This is not an OEM EGO battery. It may lack the full Arc-Lithium communication chips, so some tools may show lower runtime or refuse to charge if the BMS is incompatible. Test with your tool before heavy use.

Key Things to Know

• Quality: Aftermarket, no UL/ETL certification listed. Reports of slightly shorter lifespan than OEM (300-500 cycles vs 500+). Fine for occasional use, not daily commercial.
• Installation: Tool-free drop-in. No wiring or modification needed. Just slide in until it clicks.
• Common Gotcha: Some EGO chargers (especially older models) may reject aftermarket batteries. If it doesn’t charge, try a different 56V EGO charger or contact seller for replacement.
• Performance: 2.5Ah gives ~30-40 min runtime on a string trimmer (light trimming) or ~20-30 min on a mower (mulching). Expect less in high-load tasks like thick grass.

Should You Buy It

Buy this if you need a spare battery for light-duty EGO 56V tools (string trimmer, blower, small mower) on a budget and don’t mind trading OEM reliability for half the price. Skip it if you rely on your equipment for heavy mowing, need maximum runtime, or want a warranty-backed original—stick with an OEM BA2800.