[NSRCA-discussion] Sanyo Eneloop Batteries Info

[ronlock at comcast.net]

There is s discussion, and test results, on Eneloops by Stefan Vorkoetter at the below address. 

Later, Ron Lockhart 



http://www.stefanv.com/electronics/sanyo_eneloop.html 


----- Original Message ----- 
From: "Jay Marshall" <lightfoot at sc.rr.com> 
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org> 
Sent: Thursday, January 15, 2009 10:06:14 AM GMT -05:00 US/Canada Eastern 
Subject: Re: [NSRCA-discussion] Sanyo Eneloop Batteries 




Found some more info: 



SANYO's next-generation nickel metal hydride battery ‘eneloop’ 4pk AA NiMh 2000 mah batteries. 

Batteries have a property to release the stored energy in small amounts (this phenomenon is called ‘self-discharge’). This property is particularly noticeable in rechargeable batteries such as Nickel Metal Hydride Batteries etc. as compared to dry cell batteries, hence disabling rechargeable batteries from becoming batteries that ‘customers can use immediately after purchase’. For this reason, rechargeable batteries couldn’t be used unless charged after purchase and so lagged behind dry cells in convenience. This new product’s main property is that it has introduced great improvements in self-discharge properties (residual ratio after one year of non use is 85%*4, in temperature conditions of 20 degree Celsius according to SANYO research). Through this breakthrough development, SANYO has realized a rechargeable battery that can challenge dry cell batteries in user-friendliness through features such as making possible use immediately after purchase or once charged, its ability to be used anytime. 

·   Immediately usable new rechargeable battery 

·   Sanyo Eneloop Batteries can replace alkaline batteries for all your needs and can be used in any application where AA batteries are needed. 

·   Extremely Low Self Discharge high performance even at low temperatures down to 10 °C during your winter vacation 

·   No Memory Effect - Recharge at any time. 

·   An Environmentally-friendly product right from the battery to the packaging 

·   Comparatively more powerful and longer-lasting than dry cell batteries and superior low-temperature electrical discharge performance 

·   Can be charged up to a 1000 times. 

·   Economically more efficient than dry cell batteries, ‘eneloop’ can be used 1000*1 times over. Also, no need to worry about memory effect . 

·   eneloop is a state of the art Ni-MH battery which can be charged like any other Ni-MH battery. 

·   Can be charged by using any good quality NiMH Battery 

·   Dimensions: 14.35 mm (diameter) X 50.4 mm (height) 

·   Weight: Approximately 27g 

·   Warranty: 1 Year by Sanyo 

·   Mfrs PN: HR-3UTG-4BP, GES -HR3UTG-4BP 

·   Made In Japan * Battery life based on testing methods established by JIS C8708 2004(4.4) (varies according to conditions of use)* 





This says that chargers are not an issue. The weight is OK but the charged voltage seems to be 1.1 V (?). A bit low. Also, with an internal impedance of 25 ohms I would have serious reservations with digital servos. 




Jay Marshall 

-----Original Message----- 
From: nsrca-discussion-bounces at lists.nsrca.org [mailto: nsrca-discussion-bounces at lists.nsrca.org ] On Behalf Of vicenterc at comcast.net 
Sent: Thursday, January 15, 2009 9:35 AM 
To: General pattern discussion 
Subject: Re: [NSRCA-discussion] Sanyo Eneloop Batteries 




Anyone using these cells in RC applications? 





-- 
Vicente "Vince" Bortone 






-------------- Original message -------------- 
From: "richard wallace" <rickwallace45 at gmail.com> 
I have a set of the batteries and charger on the way based on a recommendation from a pilot last weekend. They sound like they'll be outstanding in my digital camera! 


On Wed, Jan 14, 2009 at 3:50 PM, < vicenterc at comcast.net > wrote: 



What you guys know about this NiMh cells.  They claim that charge retention is excellent.  I am ordering for my JR10X radio.  





-- 
Vicente "Vince" Bortone 


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