PlayBook BENCHMARKING, BURN-IN, STRESS TESTING, BATTERY , DISPLAY CHECKING APPS
Quick question:
Have (4) PlayBooks 64GB (1Ghz 1st Gen) purchased last week or so.
Running OS
2.1.0.1088
With PC's there are various testing, benchmarking, burn-in, stress testing, battery(laptop/netbook), and display checking apps.
Q: What (free) BENCHMARKING, BURN-IN, STRESS TESTING, BATTERY , DISPLAY CHECKING APPS are there for the PlayBook 1Ghz 1st Gen?
I'd like to fire up all running some testing apps, verify hardware is not defective, batteries aren't weak. (See Production dates below)
Concern on batteries being lithium ion? Batteries have a finite lifespan.
Hardware being defective and I only have so many days to return.
BTW: Using Battery Watch shows at 100% charge 4178mV, is this normal?
EDIT: Just read a post in another thread in which the poster said the PlayBook is a 5400mV ?
What is the chance of getting RIM to ship me some batteries?
2011-06= (3) units.... Right at 18 months old!
2011-12= (1) units......Right at 12 months old!
.
Re: PlayBook BENCHMARKING, BURN-IN, STRESS TESTING, BATTERY , DISPLAY CHECKING APPS
Originally Posted by
WeAreNotAlone Quick question:
Have (4) PlayBooks 64GB (1Ghz 1st Gen) purchased last week or so.
Running OS
2.1.0.1088
With PC's there are various testing, benchmarking, burn-in, stress testing, battery(laptop/netbook), and display checking apps.
Q: What (free) BENCHMARKING, BURN-IN, STRESS TESTING, BATTERY , DISPLAY CHECKING APPS are there for the PlayBook 1Ghz 1st Gen?
I'd like to fire up all running some testing apps, verify hardware is not defective, batteries aren't weak. (See Production dates below)
Concern on batteries being lithium ion? Batteries have a finite lifespan.
Hardware being defective and I only have so many days to return.
BTW: Using Battery Watch shows at 100% charge 4178mV, is this normal?
EDIT: Just read a post in another thread in which the poster said the PlayBook is a 5400mV ?
What is the chance of getting RIM to ship me some batteries?
2011-06= (3) units.... Right at 18 months old!
2011-12= (1) units......Right at 12 months old!
.
Lithium polymer batteries reach full charge at 4.2 V, so 4178 mV is just about right on (you don't want to exceed 4200 mV as the batteries will age quicker and are more prone to heat damage at higher charges). The 5400 figure refers to battery capacity, with units in mAh, not mV. This refers to milliamp-hours, meaning the battery will sustain a draw of 5.4 A for one hour. The PlayBook draws much less than 5.4 A, closer to 0.5-1.0 A.
RIM won't be shipping you new batteries, no tablet/computer/tech company does as far as I'm aware, outside of a short warranty of a few weeks after initial purchase. Keep your battery healthy and it should last you close to a decade. Heat is the main killer of LiPo batteries, so keep it away from car dashboards, heaters, top of warm electronics, etc. Although the software will try to keep the battery from reaching a true discharge state, prevent the battery from going below a 10% charge as shown on the software meter. Keep the battery charged for regular use, but don't keep it on the charger for extended periods (e.g., don't leave on charger while you're away for a week). Long-term storage should be done with the battery between 50-75% and the unit completely shut off.
Re: PlayBook BENCHMARKING, BURN-IN, STRESS TESTING, BATTERY , DISPLAY CHECKING APPS
Well my credentials aren't as long-term as yours, however I do use Li-Ion and Li-Po daily for both work and play, in instruments and flashlights - which turn into pipe bombs if the cells are mistreated - so I do have a good understanding of these battery chemistries.
First let us look at the original post to understand why I recommended what I did. The OP wanted to extend operating life of the battery - that is, to get as many years out of the battery as possible. This is why I recommended not discharging past 10%. I don't know what the cut-off is on the PlayBook, but I assume it is close to 3.3 or 3.4 V. As has been mentioned above, the PlayBook never really shuts down and can drain the battery past this stage. If you need to stack charge, you are likely already below 3.0 V and have damaged the battery - it will revive and still work, but the usable life has been shortened, which is not what the OP wants.
Next, leaving them on the charger. Given the rather poor robustness of the charging software (see above), I erred on the side of caution and advised not to leave it on the charger. I'm sure you are aware of many cheap Li-Ion chargers in the RC market which will trickle charge even after the cells are full. Yes, I have seen the results of a battery left on such a charger for 48 hours (hint: don't do it in your bedroom). If you have empirical evidence that long-term charging does not damage the service life of the battery, great.
I will agree with you on storing it fully charged - I gave this last piece of advice based on storage of an unprotected cell (I keep a cache of 18650s in my safe), however the PlayBook will present a constant draw to the battery while stored.
Re: PlayBook BENCHMARKING, BURN-IN, STRESS TESTING, BATTERY , DISPLAY CHECKING APPS
Buy Battery Guru inthe Blackberry World and then you can see your charge-discharge curves. My Playbook charges to just under 4.2 V and discharges to just over 3.4 V. Also see Battery World site for some actual data. To me this data shows that keeping fully charged will decrease life a little as will deep discharges. High temperatures like 40 C are quite deleterious.
http://batteryuniversity.com/learn/a...ased_batteries