Upgraded from BD200, BD250 is not only a powerful discharging device but also a precise measurement tool for battery capacity. It takes the guesswork out of choosing the good-performance battery for your application. BD250 offers a maximum of 250 Watts/35 Amps to discharge your battery and will test virtually any battery type or size, any chemistry cells. It's stylish but small with a high-performance cooling system and uses MOSFETS from the well-known IXYS, to make sure it can discharge at 250 watts continuously.