Customized Solar Energy Lead-Acid Replacement Battery 12V LiFePo4 Battery 12.8V 300Ah 150Ah 100Ah
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- Loading Port:
- NINGBO
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 carton
- Supply Capability:
- 100 carton/month
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Specification
Origin:
China
Color:
Greenish gray
Shell material:
Polycarbonate plastic
- Q: I just bought myself a nice, new laptop. Now I've heard two different philosophies when it comes to making the battery pack in it last:A) always plug it in and use it as rarely as possible in battery modeB) always run it in battery mode until totally empty, then recharge, and use again in battery mode.Somehow, neither of these feel completely right to me. Memory effect, limited number of charging cycles what's the generally accepted opinion in geek circles?
- read the link for full info on Calibrate Laptop Battery
- Q: Hi, I've been trying to google-educate myself but I want to make sure of what I'm doing and ask for some expert advice, if we've any in the audience. :) I have a battery case that takes two AA batteries (energizer if that matters), I've checked on my voltmeter and I believe it gives a DC current of 3.20v (if that's way off I may be using my voltmeter incorrectly) And the LEDs I have are 5mm Nexxtech LEDs, which from searching I've found this information on them: 5mm (T1 3/4): Forward Voltage 2.2 V, Forward Current 10 mA (max 15 mA).Now I want to hook up 4 LEDs to this battery pack, to be continuously illuminated. I have also got a pack of 1/4 watt 5% resistors. On the back of the pack it lists a whole slew of specs, apparently there are two of each type, but I'm not sure what the numbers mean, or how to differentiate which resistor is which. (see the summary of
- The battery pack you have is +3.2 volts, which is correct since *unloaded* batteries are typically 1.65V and are 1.5V when loaded down. Now in order to hook up (4) LEDs with a (minimum) forward voltage of 2.2V, you will need 4 * 2.2V 8.8V (minimum) as a voltage source. Therefore you would need (3) dual AA battery packs that are connected in series to get 9.6V to work properly. Next you will need to control the current thru each of the LEDs that are also connected in series. The resistor would be need to be the voltage divided by the current from Ohm's Law as follows R V / I (9.6V - 8.8V) / 10mA 0.8V / 0.010A 80 ohms With this solution you can use (1) switch to turn off all the LEDs. An alternate way to power the LEDs is when each of the (4) LEDs are in parallel to the single 3.2V source. Since the voltage drop of each LED is 2.2V, the resistor for each LED would be R V / I (3.2V - 2.2V) / 10mA 1.0V / 0.010A 100 ohms Now you would need a switch to the batteries that is in series will all (4) LEDs that are in parallel to each other with their separate 100 ohm resistor. Notice that the batteries will not last as long with the LEDs in parallel as they would with the LEDs in series. The series combination is more efficient, but requires a higher voltage. LEDs do not give off heat, but the resistor might. However, the current of 10mA is not enough to create any danger.
- Q: I would like to run this motor intermittently using a portable drill-type rechargeable battery pack, maybe lithium-ion. How long could I expect it to function with say a 30 percent on/70 percent off duty cycle before it drains the battery?
- all of us else advised you regarding the motor, and that they are quite often good different than that maybe they are exaggerating slightly approximately what's going to ensue (e.g., circulate up in smoke, soften). yet be conscious! The wires you employ can circulate up in smoke or soften in the event that they are not heavy adequate (do no longer question me how i understand!). on the different hand, i think of they are deceptive you approximately your image voltaic panel. there isn't any such factor as a 12V panel. in the experience that your panel is labelled 12V, that in simple terms approximately easily skill that it replaced into designed for charging a 12V battery. I even have a 5W 12V panel that i offered to test with. In complete sunlight, this is open circuit voltage is 25V. when I hook it as much as a battery, regardless of the incontrovertible fact that, its output voltage is on the instant compelled to despite the voltage of the battery replaced into on the time. If the battery voltage replaced into low, and that i circulate away it interior the sunlight all day, that voltage will (ever so slowly) upward push. in case you do no longer use a charge controller, then it quite is quite useful to observe it, and disconnect the battery from the panel whilst the voltage gets up over 14V. a solid rule of thumb for lead-acid batteries, B.T.W.: in case you pick for them to final, then do no longer charge or discharge the battery in something under 10 hours. it quite is to assert, in the experience that your battery is labelled 12Ah, then you quite quite oughten't to entice from now on than a million.2A from it, or charge it at extra desirable than a million.2A.
- Q: I have the battery pack for this phone, but it doesn't say in the directions if you're supposed to take off the layer of plastic wrap that covers all but the ends of the batteries. There is a small plug-in that goes from the battery pack to the phone, so the batteries don't actually have to make contact with anything other than that.We live in a town with a volunteer fire department, so I really want to get this right! :)
- Look at the voltage of the battery pack, it's probably 3.7. I've never heard of a phone burning up unless it takes a lightning hit. The plastic should stay on, it's protection from the battery leaking. You won't start a fire.
- Q: hey, my xbox 360 batteries in the battery pack dont last long at all. i use duracell batteries an i go through a 20 pack too fast. im going to get a charger that plugs into the top of my controller soon, but im worried if it will charge my duracell batteries or not? if not, what batteries do, an if you dont know can yieu suggest the batterys you use an recharge using the cord charger. thanks
- energizer artwork nicely for me, yet I many times purely use some rechargeable batteries, so while the 1st 2 die, i've got been given the 2nd 2, and then i will permit those can charge collectively as i exploit the sparkling ones. in basic terms a thought
- Q: i have an old laptop with only 1 battery pack in the back. How do i make it work?
- Only one battery pack in the back? And what do you want? Two battery packs in the back and two in the front? Don't you see that your question is not really clear? If you mean that you have a battery and it's no good and you don't have a charger, BUY A CHARGER. Is it too complicated for you?
- Q: 12V battery pack without protection board safe?
- Can not. Resulting in lithium battery over discharge, affecting life.
- Q: I bought a black rechargable battery pack and the only way it will charge is with play and charge but my other 2 battery packs thats are white will charge just fine.
- My Recharge Station
- Q: Ups the problem of external battery pack.
- Your UPS inside the series of two 12V battery, do not remove the original battery in the case, you can put your battery in parallel and then connected in parallel.
- Q: I play my Xbox close to the system, and during game play my controller turns off while my batteries are fully charged.
- Maybe while ur playing u keep moving the battery case on the controller it is rlly sensitive so bkerful when ur playing it is rlly sensitive
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Customized Solar Energy Lead-Acid Replacement Battery 12V LiFePo4 Battery 12.8V 300Ah 150Ah 100Ah
- Ref Price:
-
- Loading Port:
- NINGBO
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 carton
- Supply Capability:
- 100 carton/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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