Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Can this battery be used as a replacement or spare battery in the CST0012 18 volt weed trimmer.
Document: I purchased an Earthwise string trimmer with 2.6 amp 18 volt lithium ion rechargeable batery pack slightly more than 1 year ago. The battery will not hold a charge, I think because of non use over the winter. I have several other rechargeable battery tools, and all of them function well even after extended periods of non use. I would not purchase another Earthwise battery product because of that deficiency.
I bought an Earthwise 18 Volt lithium ion chainsaw which ships with a 1.5 Amp-Hour battery. This is not a professional saw, but all I needed was something for yard work. I really like the saw, but the 1.5 AH battery just doesn't give me enough "saw" time even for light yard work. After a few limbs, the battery needs to be recharged. So, I bought this bigger 2.6 AH battery as a backup.
it was $20 less than any where else I looked and it worked fine in my three year old weed wacker
I bought my battery used via the Outdoor Store on Amazon. As much as I like my Earthwise cordless chainsaw, I was getting frustrated by the short run time of the battery.At first I was disappointed with the run time of the new 2.6 amp battery until I realized it wasn't even on the saw.When I actually attached the 2.6 amp battery to the chainsaw, the extra power and longevity of usage were readily apparent.
While it would fit into the hedge trimmer, it had a bump on the charging end that would not allow it to fit into the charger. I had to go directly to the manufacturer who sold me one that worked for about 80% of your price. Will be real suspicious about using Amazon again.
I owned this less than one year, with a cordless string trimmer. It will not hold a charge. And by that, I mean, it doesn't even run more than 10 seconds now. Terribly misled by online reviews... DO NOT BUY if you want rechargeability beyond 1 year... I am so upset by this purchase!
I love the battery. It really extended the use time of my leaf blower. I would definitely recommend this product.
Lithium Ion is the way to go. Battery was delivered promptly, charges quickly and can't say how long it lasts because.so far it has outlasted me.
this is the battery to get if you own the saw it goes into. it runs the saw faster and longer. it does not seem to take any longer to charge, making it better than the battery it came with.
My only Earthwise device is the 10-Inch Lithium Cordless Electric Chain Saw (which is excellent). Having this additional battery, with it's long life and short charge time, makes the chainsaw a perfect product.
Answer: yes