2X Mondpalast @ quality battery for Canon NB 6LH NB6LH with Info Chip - 3.6V / 1060mAh - Canon SX500 IS 100% compatible SX510 HS SX510HS SD1300 (Electronics)
Was skeptical at first, but I have had good experiences. Batteries fit. Only 3.7V are given instead of 3.6V. But made no adverse comments. Battery life is not different from the original.