How long do you need to crank it and how long does it last?
2043939
about 30 seconds of cranking will charge it for 15 minutes or more. I haven't found myself cranking it all the time as it tends to get enough sunlight to keep it reasonably charged.
2043940
You can crank it for 2 to 3 minutes at a time and not to fast, and will last for around 1hour. Whenever possible charge it with the sun and will last hours.
1946906
Maybe 30 min, but you can bigger batteries. Just make sure its safe for the motor
1878769
I have two, the one that came with the boat and a slightly larger one. I would say you should get at least 15 min out of it but then again depends how you run the boat. Long story short you should have at least two batteries to properly enjoy a nice 30 min.
929196
I'm not sure if there is some confusion regarding how it is powered but I don't want to seem like a jackass but it depends. Unit is powered by 4 "AA" batteries (not included), if you use high powered batteries I think you could get 6-12 hours of use at moderate volume. If you use cheap batteries at high volume maybe 3-6 hours, again depends. Friend I bought it for uses the AC adapter, when we used it with batteries (standard alkaline) it lasted 2+ hours without dying, I hope this helps.
1235688
I don't use a cranking device I use the cocking harness. The short rope with rubber hooks. I am 65 and I have no problem cocking it.
392249
Hi, I have a marine cranking amps 750 and cold cranking amps 600 around to 2 years and I got it from costco for a good price.
650974
no problem with my crank but i've seldom used it...mostly used solar. batteries can be recharged but seem not to be normal size or shape, hard to find replacement for them when they died...multiple battery only shops didn't have. overall i found the unit far too complex for a "survival" and "emergency" type radio. my belief is that you want ruggedness and easy to use basic functions not lots of complex options. better and simpler options available.
514697
About 20 minutes. You can also use lipo pack's that will last 45 minutes to an hour.
484585
It all depends on how hard you run it. Flat out constant, probably about 20 minutes. Giving the battery a few breaks 30-45 minutes. Resting it a bit seems to help give much longer times..
852094
It all depends on how fast and ofter you pedal but usually withinn 15 min or so.But it best if you keep it plugged in to maintain a good charge.
1438063
I have had mine 8 months. I repair musical gear. Keyboards etc. No trouble out of mine. Have not needed to crank it past 385. There not mentioned for fast. But precision. Elements available on amazon or manufacturer website. My buddy burns his up alot too. Too much heat
530683
I have not timed it but get a pretty long time out of it....can almost 2 mows (blowings) out of it...I love it and have the string trimmer too so I just swap out the battery....still happy with my battery tools...
445691
I bought this as a gift for someone who works on it as a hobby. I would say 3 to 6 months if you are only working on it on weekends in your spare time.
1412089
usually takes about 3-4 hours but it depends if you let the battery drain all the way or recharge it when it has half charge. I have not recharged it for awhile and I have use it to restart cars, inflate bikes tires and inflate sport gear these past months. I do check the battery meter to see how it's holding and recommend to keep on a shelf above the ground and recharge at least every month if you use it often other wise it holds charge without recharging that much.
2082250
yeah you really have to crank it a long time. It doesn't hold a charge at all. It charges my phone (not an iphone) in about 45 mins.
370897
It comes with a crank handle. You can remove the handle and replace it with the motor, which is sold separately.
1562098
The crank action feels fairly rugged with the usual sounds while cranking. Cranking at 120 RPM yields a charging current of approximately 250mA, so if you were to actually try doing a full charge, it'd take at least two and a half hours of continuous cranking. That's why this is not something someone would do on a regular basis; it should be considered as a method for emergencies only, or if you just want to play with it for a while, or give it a quick top off charge. Charging from USB gives it about 150mA charging current, so it actually would take longer, but sitting four hours idly watching the red light turn green is a lot easier than cranking furiously for 2-1/2 hrs... ;)