Of course, you'll get the best results with a fully charged stun gun. However, once it is charged, it will last for a couple of months before you have to plug it back in to recharge it. If it's been a month since you last charged it, it will still work fine on an assailant. It may not be as charged as it can be, but it will still provide the necessary juice you need to protect yourself.
It's important to test-fire your stun gun periodically. You can tell the difference between a charged one and one that is not. The sound of the electrical crackle will not seem as loud or as strong on a stun gun that needs recharging. Remember to only test fire your unit for one second at a time. Test firing longer than that can damage a stun gun because the electrical discharge is not going anywhere.
Also, if it has a flashlight function on it like a lot of stun guns do, you can see the brightness of the light. A dim light tells you to recharge. Of course, if your stun gun stops working, then you should first try to recharge it.
The effect of a stun gun comes from the power of the batteries (either regular or rechargeable). The better or more charged the batteries are, the more juice the device will have to do its job.
If you have a full charge, you can use your device many, many times. Just make sure to use the charger to charge it when you can.
Generally, you need about 8 hours to fully juice up. Follow the instructions you received with your Stun gun to get an exact time to keep it plugged in. Many models have an indicator light that will switch from red to green when it has a full charge. Once the light changes, you know you"re good to go and ready to defend yourself.
You don't want to overcharge either, as that could damage the battery and shorten its lifespan. Remove the stun gun from the wall outlet when the time has passed, or you can see the indicator light has changed to inform you that it's fully topped off.
The internal batteries on flashlight stun guns are modern and high-tech. They can hold power for long periods of time and be fully recharged many hundreds of times before they wear out.
Properly taking care of your internal batteries by following the recommended times for recharge is the best way to ensure your self defense tool will last you for years to come.
As always, if you have any questions about anything, please contact us, and we'll be happy to help.
You can find a variety of stunning devices here.