I have a TRX 9 volt or aa batteries I only use lithium ion aa batteries 4.2 volt charger an batteries 6 bucks e-bay going on 6 years now only charge 3 times a year the batteries last and last .
As to the danger of the batts give 10 people a loaded pistol that never had a gun and see what will happen .
The batteries are safe you carry the most dangerous lithium battery with you everyday pouch type lithium battery it has a bms to protect it from most stupid thing people subject to it .
As to the danger of the batts give 10 people a loaded pistol that never had a gun and see what will happen .
The batteries are safe you carry the most dangerous lithium battery with you everyday pouch type lithium battery it has a bms to protect it from most stupid thing people subject to it .