What is the battery life expectancy for a 2005 Toyota solara?

Answer 1

Six months to 48 months. I know, that's a huge timespan but a whole lot depends on how you care for the battery. If you make lots of short trips and use a lot of powered accessories your battery may not get fully charged. Convertible tops, power windows and seats, headlights all consume a LOT of power. Then there's the environment. Extreme heat and cold are battery killers. If your OEM battery isn't a sealed type then you also need to do some occasional maintenance. It's a good idea to check the fluid level at least with each oil change but monthly isn't a bad idea. Be sure you only use distilled or purified water, never tap water in a battery, it's another thing that'll shorten the lifespan. Sometimes a battery doesn't live a long and fruitful life no matter what you do. It's an electro-mechanical device...stuff happens. Bottom line though, in an '05 you're really at the end of the expected lifespan of a battery, especially an OEM type. If yours hasn't failed yet it might be a good idea to be proactive and start shopping. Be sure to buy at minimum the same amp hour rating as your OEM battery. Anything over that will just give you a little extra breathing space if you leave the key on or run lots of accessories without the engine running. Cheers