Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: how long does it take to charge
Document: The best thing I like about his charger is that it will not over charge the batteries. It will also refresh batteries that had been sitting around for a long time. But the refresh process could take several days.
The only thing that must be mentioned is that if you are in a hurry to charge your batteries, this is not the charger for you. It can take several hours to fully cycle or charge your batteries. In order to get peak performance out of your AA & AAA batteries with long term shelf life they need to be charged slowly, and this is the charger for just that.
I bought this charger to recondition some rechargeable batteries thinking they were bad. It turned out my cheap charger was bad instead. This is a nice charger with a lot of options. The buttons do different things depending on the mode you are in so it is very complicated to figure out, and if you hit the wrong button while you are charging it can mess up the charge or recondition and you have to start over. To do a full recondition can take a long time (like days).
Do your research and you will find that this is the best value out there. Independently (note the Independently) charges 4 batteries -- no more charging in pairs. Has 4 charging modes to Charge, Discharge, Refresh, and Test NiMH batteries. This guy can revive old rechargeables in the Refresh mode -- it might take a week and several charge/discharge cycles, but as long as the battery isn't damaged, it will make it perform like new.
The La Crosse charger offers great flexibility and should maintain the health of your batteries for a long time. One of the best features is that each battery is managed independently and there is an LCD to show the status for each battery. The charger will charge at 3 different rates; allows you to discharge the battery before recharging; and can refresh old batteries (this can take a few days). I had a Sony battery charger that would charge batteries in 15 minutes.
I bought this product because my older rechargeable batteries were not charging up properly with the original charger. This unit is able to recondition your old NiMh batteries and get back up to their original charge conditions.It tells you the charge status of the battery and lets you know how long they will take to charge also. It also tells you if you have batteries that have died, etc.This may be more expensive than most chargers, but it is well worth the money if you do a lot of battery charging.
A Refresh cycle may take a number of days to complete with this charger, partly because it takes twice as long to discharge a cell as it takes to recharge it. This undoubtedly reduces the risk of fire, however, so there is an upside to slower discharge rates. Most people will use the charge cycle far more often than the discharge cycle, so this is a minor issue, especially at this price level.The 4 modes can seem a bit redundant at first.
I bought this charger and three sets of the Powerex 2700mAh batteries. The charger charged them in no time, but then I turned it loose on a whole bunch of old NiMH batteries I had, using the Discharge/Refresh option. It took a *long* time (several days per set), but as far as I know they're all back to life. Except for the two that wouldn't take a charge (which was useful to know), and so I tossed them in the recycling.
But I have found it does a fine job charging 2700mA batteries at 200mA, and have not bothered to set a higher current. It does take a long time at the 200mA rate, but the batteries don't get hot.Could I squeeze out more capacity using a charger that could output 1 amp or more? Maybe.
I really like how I can not only recharge my batteries, but I can also discharge and recharge them so I get more power out of old batteries. The only downside is I don't think its intuitive. Its not super easy to use and get used to. It can sometimes take a long time to recharge batteries, but that may be because I don't fully understand how to use this charger to its best advantages.
Answer: yes