Battery drain

[Eneswar]

If I have the prime on the charger all day, the indicator will show full. if I close it and say open it the next day or a few hours later the battery indicator shows like half.

Also if I fully charge it and dont open it for a week or two, the battery will be compltely drained and wont start. Its at the point where if I dont plan to use it for a couple weeks I just remove be battery, and I even bought an extra battery just in case.

Is this a common thing with HP prime or no?

[rawi]

No, this is not common at all. I habe a Prime G1 and G2. Both calculators have at least 75% when I have them unused in the drawer for about two weeks.
I think your battery pack has to be replaced.

[Raymond Del Tondo]

The battery is not necessarily dead.

A while ago I had a similar effect that after charging the battery wouldn't hold for more than a day.
It turned out to be dirty contact areas, both on the calc and the battery.
A qtip with isopropyl alcohol will help.

As I use the calc in my relatively clean house only,
I think it's a chemical reaction between the contact points.

[Eneswar]

(Yesterday 08:41 AM)rawi Wrote:  No, this is not common at all. I habe a Prime G1 and G2. Both calculators have at least 75% when I have them unused in the drawer for about two weeks.
I think your battery pack has to be replaced.

From 100 to 75 in about 2 weeks is still a battery drain tho. This happens even on completely new batter that I recently bought. I will try cleaning the contacts with alcohol like the other person suggested. But I feel like this drain has always been there since day 1..

[RPNerd]

This is kind of normal for the Rev. A and Rev. C Prime.

The G2 (Rev. D) has a "coma" mode that reduces power drain to next to nothing a few days(?) after it is powered off. You'll notice that it takes longer to boot up when doing so from coma mode. You can also force the G2 into coma mode when switching off by holding down the Shift key when you press ON instead of releasing it first. When you do that, you'll see the HP logo on-screen until you release the keys.

[Jase]

(Yesterday 01:40 PM)RPNerd Wrote:  This is kind of normal for the Rev. A and Rev. C Prime.

The G2 (Rev. D) has a "coma" mode that reduces power drain to next to nothing a few days(?) after it is powered off. You'll notice that it takes longer to boot up when doing so from coma mode. You can also force the G2 into coma mode when switching off by holding down the Shift key when you press ON instead of releasing it first. When you do that, you'll see the HP logo on-screen until you release the keys.

Not my thread, but this was very helpful information for me. Thank you for posting it.

[Jase]

Eneswar. You stated in your other thread that your Prime was more than 11 years old.
Honestly, I would not expect a cheap OEM battery to hold much charge after 11 years.
I'd do what was recommended, and check the contacts, but if they are clean then I'd consider buying a quality $20 replacement battery. It's probably time, anyway.

[Eneswar]

(Yesterday 05:00 PM)Jase Wrote:  Eneswar. You stated in your other thread that your Prime was more than 11 years old.
Honestly, I would not expect a cheap OEM battery to hold much charge after 11 years.
I'd do what was recommended, and check the contacts, but if they are clean then I'd consider buying a quality $20 replacement battery. It's probably time, anyway.

I think you are confusing me with someone else? I have had my HP prime for approximately 2 years. But I did wrote that I bought a replacement battery and same thing happens with it.

[Eneswar]

(Yesterday 01:40 PM)RPNerd Wrote:  This is kind of normal for the Rev. A and Rev. C Prime.

The G2 (Rev. D) has a "coma" mode that reduces power drain to next to nothing a few days(?) after it is powered off. You'll notice that it takes longer to boot up when doing so from coma mode. You can also force the G2 into coma mode when switching off by holding down the Shift key when you press ON instead of releasing it first. When you do that, you'll see the HP logo on-screen until you release the keys.

So is this something you do when you know you arent going to use it for a longer period of time? I will give this a try and see what happens, had no idea about this coma mode.
Also how can I check with G or rev I have? I bought it new last year incase it matters.

[Dougggg]

On the back of a G2 in the Serial number area right below hp symbol there will be a G2 in a circle also in the help screen in the About HP Peime you wil see
hardware Version D for G2

[Eneswar]

(Yesterday 07:32 PM)Dougggg Wrote:  On the back of a G2 in the Serial number area right below hp symbol there will be a G2 in a circle also in the help screen in the About HP Peime you wil see
hardware Version D for G2

Thank you, looks like I have G2 aswell.