The HTC Li-Ion 960mA Standard Battery for the T-Mobile Dash, HTC S620 Excalibur Smartphone. This battery is an original OEM accessory manufactured by HTC specifically for the T-Mobile Dash, HTC S620 Excalibur. The Lithium Ion technology delivers long lasting talk times, standby time and rechargeable with no memory effect. This battery is great to have as a replacement or an extra battery for your T-Mobile Dash.