I bought these batteries for my father around January 2014. Specifically Panasonic NCR18650PD's for his SVD.
At the time I didn't know as much about batteries and I bought him one unprotected, and one protected.
He came to me after just putting in the fully charged protected Panny and said the device was barely firing.
I fired the device myself and saw the button was red. Checked the battery's voltage and it was 3.2V
Prior to this event, I had checked his battery voltage off that charger 5-7 days ago and it did read 4.2. He had not used that battery until this time. I know batteries shouldn't be losing charge like this, but I don't know what to do next.
Should I toss this one?
Additionally, something important to mention is my dad is color blind. The only color he sees on the SVD button when pressed is Green, even when it's yellow and red he still sees green.
Do you guys think repeatedly fully draining the batteries through red might have caused this event? I really don't know how I could help him see the change in battery states by altering the button. I'm asking because I remember reading it's not good practice to fully drain batteries.
BTW the unprotected one seems fine.
At the time I didn't know as much about batteries and I bought him one unprotected, and one protected.
He came to me after just putting in the fully charged protected Panny and said the device was barely firing.
I fired the device myself and saw the button was red. Checked the battery's voltage and it was 3.2V
Prior to this event, I had checked his battery voltage off that charger 5-7 days ago and it did read 4.2. He had not used that battery until this time. I know batteries shouldn't be losing charge like this, but I don't know what to do next.
Should I toss this one?
Additionally, something important to mention is my dad is color blind. The only color he sees on the SVD button when pressed is Green, even when it's yellow and red he still sees green.
Do you guys think repeatedly fully draining the batteries through red might have caused this event? I really don't know how I could help him see the change in battery states by altering the button. I'm asking because I remember reading it's not good practice to fully drain batteries.
BTW the unprotected one seems fine.
