High-Capacity Li-ion Replacement for EGO Battery 5.0Ah Compatible with EGO 56V Battery BA2800T BA4200T BA1400 BA5600T LB6504 LB5804

What It Is

This is a high-capacity 5.0Ah replacement battery for EGO 56V arc-lithium lawn mowers, trimmers, blowers, and other OPE tools. It’s designed to extend runtime for larger yards or heavy-use jobs where the stock 2.5Ah or 4.0Ah batteries fall short.

Fitment & Compatibility

• Voltage & platform: 56V arc-lithium – fits all EGO 56V tools, but only if your tool uses the slide-on battery mount (not the older push-button style). Check your tool’s model number for “56V” and “arc-lithium” on the label.
• Direct replacements: BA2800T, BA4200T, BA1400, BA5600T, LB6504, LB5804 – these are all 56V arc-lithium packs. The 5.0Ah capacity is higher than the stock 2.5Ah (BA1400) or 4.0Ah (BA4200T), so it’s physically larger and heavier. Measure your battery compartment depth – some older mower decks (e.g., LB4800) may not close fully with a 5.0Ah pack.
• OEM vs aftermarket: This is a non-EGO branded replacement. It may lack the “fuel gauge” button or LED indicator found on genuine EGO batteries. It should still charge on EGO’s standard 56V charger (CH5500, CH2800, etc.), but compatibility with rapid chargers is hit-or-miss – test the first charge cycle.
• Physical dimensions: Approx. 6.5” x 3.5” x 4.5” (H x W x D). Confirm your tool’s battery cavity is at least 4.5” deep and 6.5” tall to avoid fitment issues.

Key Things to Know

• Weight: 5.0Ah packs weigh ~3.2 lbs – noticeably heavier than a 2.5Ah (1.9 lbs). This can affect balance on handheld tools like trimmers or blowers.
• Charging time: Expect 90–120 minutes on a standard EGO charger (CH5500). Rapid chargers may cut to a slower rate or refuse to charge – verify with your specific charger model.
• No fuel gauge: Most aftermarket batteries omit the LED charge indicator. You’ll need to check charge state by inserting into the tool or using a multimeter.
• Warranty: Typically 12 months (vs. 3–5 years on genuine EGO). If you run the battery flat repeatedly (below 20% charge), the BMS may lock it – store at 50% charge when not in use.

Should You Buy It

Buy it if you already own an EGO 56V tool and need a lower-cost backup or a higher-capacity pack for a large lawn (over 1/4 acre) – the price is roughly half of a genuine EGO 5.0Ah. Skip it if you rely on the fuel gauge, need a warranty longer than a year, or have a tight battery compartment on an older model; stick with OEM for guaranteed fit and support.