The EGO BA4200T is a 56V, 7.5Ah lithium-ion battery built on EGO's patented ARC Lithium technology, which pushes heat away from the battery cells during use so equipment can run longer at full power without the performance drop-off common to lower-quality cordless battery packs. Every EGO battery in this line is universally compatible across the entire EGO POWER+ platform, meaning the same BA4200T pack can power a mower, blower, trimmer, chainsaw, or any other tool in the lineup without needing a tool-specific battery.
Landscaping professionals, property maintenance crews, and homeowners running multiple pieces of EGO equipment rely on the BA4200T's higher 7.5Ah capacity wherever extended runtime matters more than minimizing battery weight — mowing larger properties, running a blower for an extended cleanup session, or powering a chainsaw through a full afternoon of cutting are typical scenarios where the added capacity pays off compared to EGO's smaller-capacity packs. An upgraded fuel gauge with built-in indicator lights shows remaining runtime in 20 percent increments directly on the battery, and a shock-resistant housing protects the internal cells and electronics from job-site drops and outdoor elements.
Common configuration: 56V DC operating voltage, 7.5Ah capacity, 420 Wh energy rating, 42-cell lithium-ion construction, flat contact terminal design, patented ARC Lithium (Keep-Cool) cell technology, intelligent power management monitoring and optimizing each individual cell, integrated fuel gauge with 20% increment indicator lights, patent-pending power management system protecting against overheating and over-discharge, optimum charging temperature range of 32°F-104°F (0°C-40°C), weight of approximately 6.31 lb (2.86 kg), physical dimensions of roughly 8" x 8-5/8" x 10-1/4", universal compatibility with all EGO POWER+ outdoor power equipment and chargers, and a 3-year limited warranty. Charge time varies by charger: 45 minutes with the Turbo Charger (CH7000), 60 minutes with the Rapid Charger (CH5500), 100 minutes with the 320W Charger (CH3200), and 145 minutes with the Standard Charger (CH2100); two 7.5Ah batteries fully charge in 120 minutes using the Dual-Port Charger (CH2800D).
Quick-Reference Spec Glossary
- Voltage
- 56V DC
- Capacity
- 7.5Ah / 420 Wh
- Cell construction
- 42-cell lithium-ion, ARC Lithium (Keep-Cool) technology
- Weight
- ~6.31 lb (2.86 kg)
- Charge time (by charger)
- 45 min (CH7000) to 145 min (CH2100)
- Fuel gauge
- Built-in indicator lights, 20% increments
- Optimum charging temp
- 32°F-104°F (0°C-40°C)
- Warranty
- 3-year limited