DTK 9.0Ah Replacement for EGO 56V Battery BA4200 BA4200T BA2800 BA2800T BA5600 BA5600T BA1400T Batteries BA1400 Cordless Tool 2 Packs

What It Is

This is a two-pack of 9.0Ah aftermarket lithium-ion batteries designed to replace EGO’s 56V Arc-Lithium line (BA4200, BA2800, BA5600, BA1400T, and similar). They power EGO cordless lawn mowers, trimmers, blowers, chainsaws, and other 56V tools.

Fitment & Compatibility

These batteries fit any EGO 56V tool that accepts the standard slide-in battery interface—this includes all current EGO mowers, string trimmers, leaf blowers, hedge trimmers, and chainsaws. They are not compatible with EGO’s older 56V backpack batteries or the 56V commercial “Power+” series. Before buying, confirm your tool’s voltage (56V) and that it uses the rectangular slide mount (not a top-post or backpack connection). Check your tool’s manual or the battery compartment shape—if your original battery has the same dimensions and slide rails, it will fit.

Key Things to Know

• Amp-hour (Ah) rating: 9.0Ah is a high-capacity option—expect longer runtime than a 5.0Ah or 7.5Ah pack, especially on mowers. However, it adds weight (about 3.5 lbs per battery) and may feel heavier on handheld tools.
• Aftermarket vs. OEM: This is a third-party battery, not EGO brand. Performance and longevity vary. Read recent reviews for signs of early failure or swelling. Check if the seller offers any warranty (most aftermarket packs have 1 year vs. EGO’s 3-year).
• Charging: Works with any EGO 56V charger (standard or rapid). Charge time will be longer than a smaller Ah pack—expect 2–4 hours per battery on a standard charger.
• Installation: Zero difficulty—slide battery onto tool until it clicks. No tools needed.

Should You Buy It

If you need two high-capacity batteries for a mower or want longer runtime on heavy-use tools (trimmers, blowers), this two-pack offers good value versus buying a single OEM 9.0Ah. But if you prioritize reliability and a longer warranty, stick with genuine EGO—especially for tools you depend on. This is a solid budget option for occasional or backup use.