DTK 2 Pack 56V 5.0Ah Replacement for EGO Battery 56V CS1604 CS1804 CS1403, Compatible with BA2800

What It Is

This is a 56V 5.0Ah lithium-ion replacement battery pack for EGO lawn mowers, string trimmers, and other 56V Arc-Lithium tools. It’s designed to power compatible EGO equipment like the CS1604, CS1804, and CS1403 mowers, as well as the BA2800 battery system.

Fitment & Compatibility

• Check model numbers: Confirmed fit for EGO CS1604, CS1804, CS1403 mowers, and any tool originally using the BA2800 battery (e.g., LB5300 blower, ST1500 trimmer). Not compatible with older EGO 56V tools requiring BA1120 or BA1400 batteries.
• Voltage & capacity: 56V, 5.0Ah – matches OEM BA2800 specs. Works in all EGO 56V Arc-Lithium tools, but may not physically fit in some compact housings (e.g., LT2000 trimmer); measure battery compartment depth (approx. 6.5" x 4" x 3.5").
• OEM vs aftermarket: This is a third-party replacement, not EGO-branded. Expect slight differences in plastic molding or latch feel, but it should snap into place on standard EGO ports.
• Charger compatibility: Works with any EGO 56V charger (standard or rapid). No adapter needed.

Key Things to Know

• Installation: Drop-in replacement – no tools or wiring required. Push battery into mower/trimmer until latch clicks. If it doesn’t seat fully, check for debris in the battery slot.
• Performance: 5.0Ah capacity provides about 45–60 minutes of mowing on a 20" deck (similar to OEM BA2800). Run time will be less on high-speed trimmers or blowers.
• Quality concern: Some users report slightly shorter lifespan than OEM (2–3 seasons vs 3–4). The plastic housing may feel less robust, but the cells typically hold charge well for the first year.
• Compatibility gotcha: Does not work with EGO Power+ Nexus power station or any 56V tool requiring a “communication chip” (rare, but check your tool’s manual). If your EGO tool has a battery gauge that doesn’t light up, it’s likely incompatible.

Should You Buy It

Buy this if you need a reliable spare battery for your EGO 56V mower or trimmer at a lower cost than OEM ($136 vs $200+). It’s a good value for light-to-moderate use (1–2 acres weekly). Skip it if you need maximum longevity or heavy commercial use – invest in an OEM BA2800 for better warranty and durability.