 " Battery Pack "@en, VW-VBT190 "@en "Panasonic - Pack"@en
"
Features

3.6V, 1940mAh(min.), 7.0Wh
Uses Battery Charger VW-BC10

"@en 
 "Canon Battery Charger CB-2LC"@en-US "Accessories - Page 930 | EISF"@en-US
"Canon CB-2LC Battery Charger For SX40 HS, SX 30IS, SX20IS, SX1 IS"@en-US 