jetBook Lite rechargeable batteries

GA Russell · 12-22-2009, 09:29 PM

OK, so today for my jetBook Lite I bought some NiMH batteries.

As I mentioned elsewhere, I have some old NiCad batteries with a charger.

Will the old charger work with NiMH batteries, or will I need to buy a new charger specifically for NiMH batteries?

JeePea · 12-22-2009, 10:21 PM

You need to get a new charger. NiMh batteries charge at a different rate and require a sensor circuit to prevent over charging which can lead to battery damage.

kabir · 12-22-2009, 10:23 PM

Quote:

Originally Posted by GA Russell

OK, so today for my jetBook Lite I bought some NiMH batteries.

As I mentioned elsewhere, I have some old NiCad batteries with a charger.

Will the old charger work with NiMH batteries, or will I need to buy a new charger specifically for NiMH batteries?

Why don't you just buy one charger that works for NiMH? It won't cost much. It is not worth saving a few bucks while risking your new NiMH batteries.

kabir · 12-22-2009, 10:27 PM

Speaking of AA batteries, have you experienced something strange with Jetbook lite? My JBL changes the battery indicator from 3 bars to no bar right away. Apparently, either my batteries are crappy (very likely) or JBL is using crappy algorithm to detect power level.

JeePea · 12-22-2009, 10:40 PM

I've only had my Jetbook Lite for five days and my current set of NiMh rechargeables have only been in for three days. They haven't dropped below the fourth bar yet and I read a couple of hours each evening. If I see the same behavior as yours, I'll report it. BTW, I'm using some Eneloop clones which have a very slow self-discharge rate. I'm hoping they will help extend the time between battery changes by discharging less when the unit is in standby. Time will tell.

GA Russell · 12-23-2009, 12:26 AM

Thanks guys. The store was sold out of the chargers they had the other week. I'll try another store over the weekend.

MikeB1972 · 12-23-2009, 05:58 AM

The Battery indicator will be configured for normal AA batteries - Rechargable batteries drop off very quickly, most equipment you use them in will give little to no warning when they go flat.

GA Russell · 12-23-2009, 02:36 PM

Quote:

Originally Posted by MikeB1972

The Battery indicator will be configured for normal AA batteries - Rechargable batteries drop off very quickly, most equipment you use them in will give little to no warning when they go flat.

Mike, that's good to know. I see that you have a jetBook Lite, so you speak from experience.

I'm surprised that the indicator isn't configured for rechargeables (if that's possible), because I would expect all jetBook Lite owners to use them.

mitchwah · 12-23-2009, 08:12 PM

Quote:

Originally Posted by JeePea

BTW, I'm using some Eneloop clones which have a very slow self-discharge rate. I'm hoping they will help extend the time between battery changes by discharging less when the unit is in standby. Time will tell.

Yeah, I second getting the Sanyo Eneloop batteries. They are the highest rated out there. $16+ at Amazon for 4AAs and a charger, $10 for 4-pack. Didn't see them in stores, however.

kabir · 12-24-2009, 11:03 AM

Quote:

Originally Posted by mitchwah

Yeah, I second getting the Sanyo Eneloop batteries. They are the highest rated out there. $16+ at Amazon for 4AAs and a charger, $10 for 4-pack. Didn't see them in stores, however.

Duracell re-badges Sanyo Eneloop. If you find Duracell rechargable with white top, rated as 2000mah, boasted as long lasting and made in Japan, it is most likely re-branded Eneloop.

mitchwah · 12-24-2009, 03:08 PM

Quote:

Originally Posted by kabir

Duracell re-badges Sanyo Eneloop. If you find Duracell rechargable with white top, rated as 2000mah, boasted as long lasting and made in Japan, it is most likely re-branded Eneloop.

Cool! That's good to know. Thanks kabir.

kolrone · 01-07-2010, 05:59 PM

I have a question (maybe a silly one) for JBL owners. If you use rechargeable batteries in the JBL, can you charge them while they are in the reader? Or must you take them out and charge them in a separate battery charger?

Ken Maltby · 01-07-2010, 06:33 PM

As far as I know, the JBL has no charging circuit, so I don't see how it would be able
to charge any re-chargable batteries (or non-rechargable). I can't say that I have any
direct knowledge about it though, as I am still on the batteries that came with it. I have acquired an "Energizer" Compact charger and an extra set of 4x AA rechargeable
batteries. The 4 that came with the charger are all charged up and waiting for the
original batteries to give out (it finally went down one bar, to three bars, yesterday) but
at this rate, it's going to be awhile.

Luck;
Ken

kolrone · 01-07-2010, 06:55 PM

Thanks Ken. I thought that was the case, but I just wanted to make sure.

kirbinster · 01-07-2010, 07:17 PM

Costco sells the Enelops at a good price.

12-22-2009, 09:29 PM	#1
GA Russell Ticats/Als, Riders/Lions Posts: 7,717 Karma: 31487351 Join Date: Aug 2009 Location: Raleigh, NC Device: Paperwhite, Kindles 10 & 4 and jetBook Lite	jetBook Lite rechargeable batteries OK, so today for my jetBook Lite I bought some NiMH batteries. As I mentioned elsewhere, I have some old NiCad batteries with a charger. Will the old charger work with NiMH batteries, or will I need to buy a new charger specifically for NiMH batteries?

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12-22-2009, 10:21 PM	#2
JeePea Enthusiast Posts: 34 Karma: 58 Join Date: Sep 2008 Device: Ectaco Jetbook Lite	You need to get a new charger. NiMh batteries charge at a different rate and require a sensor circuit to prevent over charging which can lead to battery damage.

12-22-2009, 10:27 PM	#4
kabir Member Posts: 18 Karma: 10 Join Date: Dec 2009 Device: Jetbook Lite	Speaking of AA batteries, have you experienced something strange with Jetbook lite? My JBL changes the battery indicator from 3 bars to no bar right away. Apparently, either my batteries are crappy (very likely) or JBL is using crappy algorithm to detect power level.

12-22-2009, 10:40 PM	#5
JeePea Enthusiast Posts: 34 Karma: 58 Join Date: Sep 2008 Device: Ectaco Jetbook Lite	I've only had my Jetbook Lite for five days and my current set of NiMh rechargeables have only been in for three days. They haven't dropped below the fourth bar yet and I read a couple of hours each evening. If I see the same behavior as yours, I'll report it. BTW, I'm using some Eneloop clones which have a very slow self-discharge rate. I'm hoping they will help extend the time between battery changes by discharging less when the unit is in standby. Time will tell.

12-23-2009, 12:26 AM	#6
GA Russell Ticats/Als, Riders/Lions Posts: 7,717 Karma: 31487351 Join Date: Aug 2009 Location: Raleigh, NC Device: Paperwhite, Kindles 10 & 4 and jetBook Lite	Thanks guys. The store was sold out of the chargers they had the other week. I'll try another store over the weekend.

12-23-2009, 05:58 AM	#7
MikeB1972 Gnu Posts: 1,222 Karma: 15625359 Join Date: Jul 2009 Location: UK Device: BeBook,JetBook Lite,PRS-300-350-505-650,+ran out of space to type	The Battery indicator will be configured for normal AA batteries - Rechargable batteries drop off very quickly, most equipment you use them in will give little to no warning when they go flat.

01-07-2010, 05:59 PM	#12
kolrone Enthusiast Posts: 43 Karma: 113 Join Date: Dec 2009 Location: Florida, US Device: jetBook-Lite, eBookwise-1150	I have a question (maybe a silly one) for JBL owners. If you use rechargeable batteries in the JBL, can you charge them while they are in the reader? Or must you take them out and charge them in a separate battery charger?

01-07-2010, 06:33 PM	#13
Ken Maltby Wizard Posts: 4,466 Karma: 6900052 Join Date: Dec 2009 Location: The Heart of Texas Device: Boox Note2, AuraHD, PDA,	As far as I know, the JBL has no charging circuit, so I don't see how it would be able to charge any re-chargable batteries (or non-rechargable). I can't say that I have any direct knowledge about it though, as I am still on the batteries that came with it. I have acquired an "Energizer" Compact charger and an extra set of 4x AA rechargeable batteries. The 4 that came with the charger are all charged up and waiting for the original batteries to give out (it finally went down one bar, to three bars, yesterday) but at this rate, it's going to be awhile. Luck; Ken

01-07-2010, 06:55 PM	#14
kolrone Enthusiast Posts: 43 Karma: 113 Join Date: Dec 2009 Location: Florida, US Device: jetBook-Lite, eBookwise-1150	Thanks Ken. I thought that was the case, but I just wanted to make sure.

01-07-2010, 07:17 PM	#15
kirbinster Enthusiast Posts: 32 Karma: 10 Join Date: Jan 2010 Device: Jetbook Lite	Costco sells the Enelops at a good price.