Have an auto that is not driven often the sp3 has several ways to charge.Which is the best way to charge this auto?
1501379
It doesn't matter which means you use to connect the charger to the battery, whichever is most convenient for you, either the alligator clips or the eyelet connector for hard wiring to the vehicle. Once connected the charger automatically charges, then maintains the battery, so you can, and should, leave it hooked up until you want to use the vehicle again. Leaving the charger on the battery should extend the life of the battery.
998697
If you use it as a stand-alone, charge it after each use. I like a float charger, leave it plugged in all the time, no damage. Simple trickle chargers can shorten their life.
1062694
Need to let the battery charge up. Leave off and you can use car or computer to charge for a hour.
1408760
In my Chevy pickup the plug is always hot, even with the key out of the ignition. So with a device plugged into the charger it will pull some power. Also the charger by itself will burn a tiny amount of power since it is converting DC voltage. This loss is tiny compared to a car battery but is an additional load if you don't run the car for an extended period. Its surprising how all the loads can add up and eventually deaden the battery.
1177564
You can charge it via computer, A/C, or your car. You can find an accessories 3 piece kit sold on here that includes all 3, although the computer charger is not necessary as it's included. It doesn't have that nice mini-USB port like most gadgets, but the other, wider type of port that many old cell phones have. I think it's a peripheral port, or something to that effect.
979283
I would car charge while driving only. That way you will not waste gas. Ues the solar panel when not driving and alternate when needed. Remember the point is to have backup power. Always try to keep it charged and plugged in. Just be resourceful about it. If you have to use your car then make sure it is running. You will drain your car battery quickly if not running.
735680
You have to ensure the internal battery is charged or ensure that you have a good connection to the vehicle power source. If you have the USB connector you can charge it that way, although I never have been able to operate solely on the battery for any length of time.
1855361
It can go either way, for optimum power you should keep it fully charged, the charge wont fade just because its not on the charger
1140740
My husband charged it when he received it two or three months ago. He uses it to charge the auto tires and other small items on a limited basis. So far, he has not charged it since he got it. .. It's the best one he's had and most convenient as it was a replacement for portable Black and Decker Tire chargers he had which worked on rechargeable batteries and they have lasted 20 years with one in each car..
1676555
Yes. You can use it and charge it at the same time. I leave mine on charge in my auto continuously while I am driving. Works well that way. I never have to touch it.
916585
Automatic chargers have a minimum voltage that must be met before they will start their charging cycle. If the battery is deeply discharged enough 2-3V just about the only way to bring it back is to use a small 2Amp *Manual* charger until the voltage is high enough that an automatic charger can start it's charging cycle. For a motorcycle battery you'd want to use a 1Amp *Manual* charger for the same purpose. Once it's done charging your best bet is to take it to a place that can Load Test it to determine whether it's still good or not.
98779
You have to charge it using the remote transmitter it was designed for. It cannot be charge any other way.
1373727
Disconnect ANY battery charger from the vehicle, before running the vehicle. Slamming the battery and most importantly the electronics of the auto with two different charging inputs, is not a healthy idea for those auto computers.
1070018
Good question! You can charge using the car's battery for power, but the ignition key will need to be in the "accessory" position (engine not running). However, the mfg. recommends you start the engine every few few hours to charge the car's battery up again. If the car's battery drains down to 10.5 volts (12 volts is full charge), the Energizer will shut itself off. Hope this helps.Bill R.
1015649
Just plug it right into the wall outlet and let it charge on its own. It is so much faster and easier to do it this way.
1281885
I would call Midland for that answer. I simply crank mine to charge it when needed or occasionally recharge it by plugging it in the wall when it seems to run low on power.
2103406
when i initially got the item i charged the battery for four hours anything after that and the battery gets pretty hot, now when i charge the battery , since i only have one smart charger i charge one battery with the smart charger and charge another battwery with the stock charger, when the smart charging is complete i disconnect the stock charger, works for me. it pretty much lasts for a while, ev3n after i put it away after use, it's still charged when i use it again a few days later.