The CMOS battery is dead. On these, the battery is actually user serviceable (rare with Canon) so it can be done quickly:
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The CMOS battery is dead. On these, the battery is actually user serviceable (rare with Canon; they seem to go back and fourth a lot so when you have this you did well) so it can be done quickly:
[guide|40269]
As far as buying the CR1220 for the swap your best bet is batteries+bulbs. This is a weird battery you do not see in most big box stores. You may get lucky at a drug store like CVS or Walgreens but this is not something you will find at Walmart.
The CMOS battery is dead. On these, the battery is actually user serviceable (rare with Canon) so it can be done quickly:
[guide|40269]
-
As far as buying the CR1220 for the swap your best bet is batteries+bulbs. This is a weird battery you do not see in most big box stores.
+
As far as buying the CR1220 for the swap your best bet is batteries+bulbs. This is a weird battery you do not see in most big box stores. You may get lucky at a drug store like CVS or Walgreens but this is not something you will find at Walmart.