Upgrade 10000mAh Lithium Ion Battery Long Runtime High Power Output Replacement for EGO 56V Battery BA2800 BA2800T BA4200 BA4200T BA5600T Green (Green, 10.0Ah)

What It Is

This is an aftermarket 56V 10.0Ah lithium-ion battery designed as a high-capacity replacement for EGO’s BA2800, BA2800T, BA4200, BA4200T, and BA5600T packs. It’s meant for any EGO 56V cordless outdoor tool—mowers, trimmers, blowers, chainsaws—where you need longer runtime than the standard 2.5Ah or 5.0Ah batteries.

Fitment & Compatibility

• Works with all EGO 56V tools (mowers, trimmers, blowers, etc.) that accept the standard slide-on battery interface. No adapters needed.
• Direct replacement for OEM models: BA2800 (2.5Ah), BA2800T (2.5Ah), BA4200 (4.0Ah), BA4200T (4.0Ah), BA5600T (5.0Ah). Physically same size and latch design.
• Check your tool’s battery compartment for clearance—this 10.0Ah pack is slightly taller and heavier than smaller EGO batteries, so it may not fit under some mower deck covers or in tight storage slots. Measure your battery opening height (approx. 6.5”) before buying.
• Not compatible with EGO’s 56V backpack battery adapters or any non-EGO 56V system.

Key Things to Know

• No OEM electronics – This aftermarket pack uses generic BMS (battery management system). It may not communicate charge level or temperature data to your tool’s display, so you’ll rely on the battery’s own LED gauge (4 bars).
• Heavier than OEM – At ~3.5 lbs vs. 2.2 lbs for a 5.0Ah pack, it adds noticeable weight to handheld tools like trimmers or blowers. Fine for mowers.
• Installation is plug-and-play – No wiring, no modifications. Slide on until latch clicks. Charge with any EGO 56V charger (standard or rapid).
• Longevity unknown – Aftermarket cells often degrade faster than OEM Samsung/LG cells. Expect 300-500 cycles vs. 500-800 for genuine EGO. Warranty is typically 1 year (check listing).

Should You Buy It

Buy this if you need maximum runtime for large lawns (½ acre+) and don’t mind the extra weight, lack of tool display integration, and shorter overall lifespan. It’s a budget-friendly way to double your run time vs. a 5.0Ah pack, but skip it if you rely on battery charge indicators on your tool or want the reliability of OEM cells.