Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: is this one the same as BL1815? just in 2 in a pack, thats why has a -2 on the model number ?
Document: bought 2; after several months one is still good the other has gone badexpected better performance, I generally like Makita products but this was a disappointment
I have to try to recharge it again. Also, I can't say that this will work with every battery. I suspect that by repeatedly exposing it to short charges one or two things happened. 1) the drained first cell got enough of a charge to allow the battery to charge again and/or 2) the circuit board that tells the charger that the battery is bricked somehow reset.
One battery went dead after 2 or 3 charges (after 5 months of little use). Called Makita customer service and they told me to get lost. The second battery lasted about one year (once again, with very little use). Obviously they have issues with their 18 volt Lithium-Ion batteries and for the price you pay for their guns, you'd think they would back them up. No more Makitas for me. I'm off to Bosch or Dewalt.
excellent I paid $ 144.00 dollars for two, in home depot the same exact  two battery pack was $ 200.00 dollars
Not a professional so Makita works fine for me. Really! I need to write a certain number of words to qualify as a real product rating.
Very nice drill one of two batteries no longer works.Less than one yearold. Actually 10 months
one battery (charged 4 times) will not hold a charge we threw it out. other battery ok so far. stuff happens, more than a year after purchase so no recourse
I had a battery that would not charge. When you put it in the charger the fan would come on for about 5 seconds and then it would stop and there would be the one red light on the right side of the charger. What I did was to repeatedly put the battery in for about one second and eject it. Then I put it in and the battery charged for about 35 minutes as my good battery does and then it powered off indicating a full charge.
When I decided to go with all battery tools and one Company I chose Makita. No regrets. I now have one charger and two battery sets. The 3 Amp and now the 1.5 Amp completes my collection. After breaking the seals, it took exactly 15 minutes to charge each battery. The tools I purchased using the smaller amp battery came as a &#34;Bare Tool&#34; unit.
Why buy 1 battery when you can get 2 for just a few cents more. Great battery with fast charge time.
Answer: yes