Nikon Speedlight SB-600 TTL Flash "batteries costco" Questions

batteries duracell from Costco and could not figure out why the batteries leaked in my light???is it the batteries or the Flash?? Should be the batteries. I only use rechargeables. Never had a problem

...choice but to send it back to Nikon. Same thing happened to me (note to self: NEVER NEVER NEVER use Costco/Kirkland brand batteries again). It ran about $90 to fix it. Cheaper than a new one,

...setting. You can re-set your flash by turning on its power then remove the batteries for a few seconds and replace them. Also, if have not done so switch to NiMH rechargeable batteries. Costco=20 ...