Kobo Forma

[Semwize]

Originally Posted by JSWolf

What are the dimensions of the battery used in the Forma/Libra/KA1?

click

17 is the thickness, 1.7mm

Libra - 1.5mm

And don't use Aura H2O as an example. This is a very old model, and a battery of this size and thickness should by definition have a higher capacity, 2000-2500mAh.

https://aliexpress.com/item/4000607483159.html

And you have ONLY 1500mAh and it is enough for you, right?

[JSWolf]

Originally Posted by Semwize

click

17 is the thickness, 1.7mm

Libra - 1.5mm

And don't use Aura H2O as an example. This is a very old model, and a battery of this size and thickness should by definition have a higher capacity, 2000-2500mAh.

https://aliexpress.com/item/4000607483159.html

And you have ONLY 1500mAh and it is enough for you, right?

That would be great to have a fresh 2000mAh battery. But for now as long as it works well enough, I'm not going to open it. I'm not ready to risk it.

[Sirtel]

Originally Posted by JSWolf

I do get it that too many people want thinner/lighter. But they don't realize what it is they are giving up for that. They are giving up battery life and the battery will give out sooner and they will have to buy a new Reader sooner.

I buy a new reader anyway long before the battery dies. That said, excessive thinness is not important to me, but lightness is. Over 250g and my hand starts to tire holding it.

[Semwize]

Originally Posted by JSWolf

But for now as long as it works well enough, I'm not going to open it.

Your battery is 6 years old, and it hasn't been holding 1500mAh for a long time. I think there is 1200mAh, measure.

Why can't we cite your model as an example - the fact is that the new models use the Comfortlight PRO backlight, and because of this, the battery is discharged there faster ...

If you start to find fault with the Comfortlight PRO backlight now then I don't even know what else to answer ...

[JSWolf]

Originally Posted by Semwize

Your battery is 6 years old, and it hasn't been holding 1500mAh for a long time. I think there is 1200mAh, measure.

Why can't we cite your model as an example - the fact is that the new models use the Comfortlight PRO backlight, and because of this, the battery is discharged there faster ...

If you start to find fault with the Comfortlight PRO backlight now then I don't even know what else to answer ...

When did the light come into this? Also, why woul the color LED draw more power? And the new models do not have a backlight so they won't be drawing power like you get with an LCD screen. The screen is front lit and is only lit when the light is on.

[Semwize]

Originally Posted by JSWolf

Also, why woul the color LED draw more power?

You ask questions, the answers to which are obvious.

Because there are 2 times more LEDs.

[JSWolf]

Originally Posted by Semwize

You ask questions, the answers to which are obvious.

Because there are 2 times more LEDs.

One thing I do when I read with the front light on is I have it usually set to 4. I sometimes up it to 5 or 6. But not usually. I don't need the light to be all that bright.

[pgilster]

Originally Posted by JSWolf

The Libra is like the Oasis as the hardware is similar. Kobo has improved highlighting a lot in some firmware version last year.

I'll have to disagree. Yes, firmware changes have helped. But I have been using both a Forma and an Aura ONE for a long time and while I like almost everything about my Kobos, the Oasis 3 still has far more responsive annotation capability, which I notice every time I go back to read something on it.

[NiLuJe]

Originally Posted by NiLuJe

Because I could have sworn sysfs told me it was 1250mAh at one point, but, hey, numbers and me don't mix well ;p.

Yep, faulty memory ;p.

┌─(ROOT@frost:pts/0)───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────(~)─┐
└─(0.32:29%:17:16:70%:#)── ntx_hwconfig -s -p /dev/mmcblk0 Battery                                                                                                                                                                                                                                                                                     ──(Thu, Feb 04)─┘
NtxHwCfg_GetCfgFldStrVal:[WARNING]Config version too old !! Please update config file !!
1200mA

[Semwize]

Originally Posted by JSWolf

One thing I do when I read with the front light on is I have it usually set to 4. I sometimes up it to 5 or 6. But not usually. I don't need the light to be all that bright.

Again, it is not clear, where does your Aura H2O, which you have in absolutely any topic and any discussion Aura H2O does not have Comfortlight PRO backlighting and you simply cannot compare and evaluate.

I compared - the Clara HD battery drains much faster than the Glo HD battery. The characteristics of these devices are similar, with the exception of the Comfortlight PRO.

[davidfor]

Originally Posted by Semwize

Again, it is not clear, where does your Aura H2O, which you have in absolutely any topic and any discussion Aura H2O does not have Comfortlight PRO backlighting and you simply cannot compare and evaluate.

But, you also can't really compare the Comfortlight PRO between the devices. The way it is done in the Aura ONE is completely different to the other devices. And the exact number LEDs is different between each device.

I compared - the Clara HD battery drains much faster than the Glo HD battery. The characteristics of these devices are similar, with the exception of the Comfortlight PRO.

I'm not sure if I agree with you on this. I don't remember noticing any real difference when I changed from the Glo HD to the Clara HD. I didn't explicitly test, but, that was my impression at the time. I can't compare now as the battery in the Glo HD is showing noticeable wear.

[Semwize]

Originally Posted by davidfor

The way it is done in the Aura ONE is completely different to the other devices.

Perhaps that is why it has less autonomy than the Forma, judging by the reviews above. And you have to, yes, take into account the wear of the Aura One battery. The test will not turn out "clean" anyway.

[petercreasey]

I'm surprised how much this thread seems to favor the Forma over the KA1. I thought I had recalled a sizable contingent here that favored the KA1 (as I do).

[JSWolf]

Originally Posted by petercreasey

I'm surprised how much this thread seems to favor the Forma over the KA1. I thought I had recalled a sizable contingent here that favored the KA1 (as I do).

But the Forma has a lot going for it over the KA1. The plastic backed screen, lighter, larger screen, better batter usage, better touch accuracy, and newer hardware.

I don't think the buttons are anything special.

[Elektron]

I've never seen the KA1 before physically but the Forma seems much better.