Latest product reviews
ARCHOS 50 Diamond
ARCHOS GamePad2
ARCHOS
Smartphones
ARCHOS
TV Connect
ARCHOS 101 XS

A A A
Avatar

Please consider registering
Guest

Search

— Forum Scope —






— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

Register Lost password?

ClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288

 Please donate to support OMA and CrewRKTablets firmware work, thank you !

sp_Feed sp_TopicIcon
Battery life
Avatar
bert
New Member
Forum Posts: 3
Member Since:
2012/01/22
sp_UserOfflineSmall Offline
1
2012/01/23 - 00:01
sp_Permalink sp_Print

I've had my 10g2 for about a week, but still the battery monitor estimates are still very inaccurate. I get to about 50% on the percentage left and it will shutdown, after plugging in and restarting it then reads only 5-10% left and requires a 3-4 hour recharge at least, i've tried a few monitor apps and widgets and get the same, i've not found one yet which reads the mv remaining either accurately?

Im aware these things take a few charges to settle in but i've not seen any improvement yet. Is this normal for this device?

Avatar
gerry

Contributor
Forum Posts: 71
Member Since:
2012/01/11
sp_UserOfflineSmall Offline

Thanks Received: 1
2
2012/01/23 - 00:14
sp_Permalink sp_Print

Hey Bert 

you could try Battery Indicator Pro , you should get min 10 hour out of your g2 ,try that app if your still not satisfied take it back to the shop for a replacement 

Persistence will pay off ,Trust me !!!

Avatar
damo
Kingston upon hull, UK

Contributor
Forum Posts: 243
Member Since:
2011/10/16
sp_UserOfflineSmall Offline
3
2012/01/23 - 08:34
sp_Permalink sp_Print

bert said

I've had my 10g2 for about a week, but still the battery monitor estimates are still very inaccurate. I get to about 50% on the percentage left and it will shutdown, after plugging in and restarting it then reads only 5-10% left and requires a 3-4 hour recharge at least, i've tried a few monitor apps and widgets and get the same, i've not found one yet which reads the mv remaining either accurately?

Im aware these things take a few charges to settle in but i've not seen any improvement yet. Is this normal for this device?

I had the same problem before took it back for a replacement. Looks like it is faulty

Avatar
onericardo
Member
Forum Posts: 13
Member Since:
2011/11/28
sp_UserOfflineSmall Offline
4
2012/01/23 - 14:56
sp_Permalink sp_Print

My tablet requires 8h or more to recharge. Is this normal ? 


Avatar
gerry

Contributor
Forum Posts: 71
Member Since:
2012/01/11
sp_UserOfflineSmall Offline

Thanks Received: 1
5
2012/01/23 - 16:02
sp_Permalink sp_Print

onericardo said yeh

My tablet requires 8h or more to recharge. Is this normal ? 

Yeh mine takes 6-8 hours from flat dead but you can charge it when ever you like but for more efficiency its best the battery is flat 0%

Persistence will pay off ,Trust me !!!

Avatar
damo
Kingston upon hull, UK

Contributor
Forum Posts: 243
Member Since:
2011/10/16
sp_UserOfflineSmall Offline
6
2012/01/23 - 16:09
sp_Permalink sp_Print

gerry said

onericardo said yeh

My tablet requires 8h or more to recharge. Is this normal ? 

Yeh mine takes 6-8 hours from flat dead but you can charge it when ever you like but for more efficiency its best the battery is flat 0%

With regards to the battery type that the Arnova 10g2 has here is some tips for usage. The Arnova 10g2 has the 3rd type in the table Lithium!


When I first got mine I was a bit puzzled at to how to charge etc so this should help people

 

 

Frequently
asked question

Lead acid
(Sealed, flooded)

Nickel-based
(NiCd and NiMH)

ARNOVA 10G2

Lithium-ion
(Li-ion, polymer)

How should I prepare a new battery?

Battery comes fully charged. Apply topping charge

Charge 14–16h. Priming may be needed

Apply a topping before use. No priming needed
 

Can I damage
a battery with incorrect use?

Yes, do not store partially charged, keep fully charged

Battery is robust and the performance will improve with use

Keep some charge. Low charge can turn off protection circuit

Do I need to apply a full charge?

Yes, partial charge causes sulfation,

Partial charge is fine

Partial charge better than a full charge

Can I disrupt a charge cycle?

Yes, partial charge causes no harm

Interruptions can cause heat buildup

Partial charge
causes no harm

Should I use up
all battery energy before charging?

No, deep discharge wears battery down. Charge more often

Apply scheduled discharges only to prevent memory

Deep discharge wears the battery down

Do I have to worry about “memory”?

No, there is no memory

Discharge NiCd every 1–3 months

No memory

How do I calibrate a “smart” battery?

Not applicable

Apply discharge/charge when the fuel gauge gets inaccurate. Repeat every 1–3 months

Can I charge with the device on?

Some UPS systems simultaneous charge and deliver current.

It's best to turn the device off during charge; parasitic load can alter full-charge detection and overcharge battery or cause mini-cycles

Must I remove the battery when full?

Depends on charger; needs correct float V

Remove after a few days in charger

Not necessary; charger turns off

How do I store
my battery?

Keep cells above 2.10V, charge
every 6 months

Store in cool place;
a total discharge causes no harm

Store in cool place partially charged, do not fully drain

Is the battery allowed to heat up during charge?

Battery may get lukewarm towards the end of charge

Battery gets warm but must cool down on ready

Battery may get lukewarm towards the end of charge

How do I charge when cold?

Slow charge (0.1): 0–45°C  (32–113°F)
Fast charge (0.5–1C): 5–45°C (41–113°F)
 

Do not charge
below freezing

Can I charge at hot temperatures?

Above 25°C, lower threshold by 3mV/°C

Battery will not fully charge when hot

Do not charge
above 50°C (122°F)

What should I know about chargers?

Charger should float at 2.25–2.30V/cell when ready

Battery should not get too hot; should include temp sensor

Battery must stay cool; no trickle charge when ready

 
Please Read with regards to letting battery go flat before charging as this may wear battery down
Avatar
finless
Stanton, Ca

Contributor
Forum Posts: 604
Member Since:
2011/12/10
sp_UserOfflineSmall Offline

Thanks Received: 2
7
2012/01/23 - 19:29
sp_Permalink sp_Print

FYI it takes a lot longer to charge if the unit is on.  Also I have seen cases were the LED never goes green if the unit is on yet it fully charged long ago.  So don;t judge charge based ont he LED alone.

 

Bob

Avatar
register

Contributor
Forum Posts: 84
Member Since:
2012/01/21
sp_UserOfflineSmall Offline

Thanks Received: 1
8
2012/01/24 - 00:12
sp_Permalink sp_Print

indeed these issues are quite annoying
the device will power on by itself when the charder is plugged in
and if you dont inted to use it it just stays on with the calibration screen on it
and it takes forever to charge
so every time you have to wait for it to power on and then switch it off

SurprisedArnova10G2: USB to Ethernet - PLEASE TELL ME HOW?Surprised

Avatar
bert
New Member
Forum Posts: 3
Member Since:
2012/01/22
sp_UserOfflineSmall Offline
9
2012/01/24 - 00:47
sp_Permalink sp_Print

Thanks for all the replies. I'll see if it improves. I think i might have a faulty unit though.

I got again to 38% today and it powered off, on restart it was at 7%, after which ive given it a full charge again. Im noticing aswell that it appears to increase if i put it in standby aswell by 10% roughly and then rapidly discharges back to where i left it before after use for a few minutes.

I'll give a few more cycles, otherwise back to the shop for a replacement.

Avatar
damo
Kingston upon hull, UK

Contributor
Forum Posts: 243
Member Since:
2011/10/16
sp_UserOfflineSmall Offline
10
2012/01/24 - 01:11
sp_Permalink sp_Print

I would not bother just take it back your symptom is the same as mine, you unit should not be like that, but it is important you fully charge you new one before you even attempt to use it, it does switch on when you plug in your power lead, just switch it back off as soon as it boots!

Avatar
drchips42
Active Member
Forum Posts: 38
Member Since:
2011/12/28
sp_UserOfflineSmall Offline
11
2012/01/26 - 15:03
sp_Permalink sp_Print

Use a 3rd party like circle battery to show you what power is left .

This seams to show the true value in terms of charge , mine has been working all night before on 52%... the tablet says it's 20%... 

HTC Desire CM7.1, Arnova 10G2 ( stock rom ) All Google products fully working!!

Forum Timezone: Europe/Paris

Most Users Ever Online: 749

Currently Online: admin, debster, spiralgoddess
224 Guest(s)

Currently Browsing this Page:
1 Guest(s)


Devices in use: Desktop (182), Phone (38), Tablet (7)

Top Posters:

Oma7144: 5775

globula_neagra: 2424

finless: 604

DarthJabba: 551

exelletor: 450

JochenKauz: 450

cracktech: 432

maikal: 394

Newest Members:

casparii

spiralgoddess

bearcub5

hoerni

ozeonce

josemiguel

Forum Stats:

Groups: 10

Forums: 185

Topics: 5916

Posts: 58839

 

Member Stats:

Guest Posters: 43

Members: 256469

Moderators: 5

Admins: 1

Administrators: admin

Moderators: globula_neagra, exelletor, JochenKauz, Oma7144, cracktech


CrewRKTablets moderators: JochenKauz and Astralix