[RCSE] Sanyo AA Eneloop Rechargeable Batteries
Has anyone on the exchange had any first hand experience with these batteries. I acquired 4 from a friend and made up a flight pack. Cycled them twice and they were right on the money at 2000mA. My concern is that I will be running 6 JR digital servos on this battery, therefore does anyone know the internal impedance for these batteries? All comments welcome Regards, Robert Robert P Buxton CONFIDENTIALITY NOTICE: This email message, including any attachments, is intended only for the use of the intended recipient(s) and may contain information that is privileged, confidential and prohibited from unauthorized disclosure under applicable law. If you are not the intended recipient of this message, any dissemination, distribution or copying of this message is strictly prohibited. If you received this message in error, please notify the sender by reply email and destroy all copies of the original message.
Re: [RCSE] Sanyo AA Eneloop Rechargeable Batteries
I'm using them in a 3-channel transmitter. They run it (Futaba PM) for 14 hours and hold their charge on the shelf like a lipo. The internal impedance is 25 milliohms. So not great, about the same as the Santo 2700 AA cells. Here's their website: http://www.eneloopusa.com/ Cell Specs: http://www.eneloopusa.com/pdf/HR-3UTG_Spec-eneloop.pdf Neat cells. Treat like a NiMH and they act like a Lipo (with respect to holding the charge on the shelf). Bill Robert P Buxton wrote: Has anyone on the exchange had any first hand experience with these batteries. I acquired 4 from a friend and made up a flight pack. Cycled them twice and they were right on the money at 2000mA. My concern is that I will be running 6 JR digital servos on this battery, therefore does anyone know the internal impedance for these batteries? All comments welcome RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Sanyo AA Eneloop Rechargeable Batteries
good cells for rx/tx. One of the issues with using lipos in these situations is that if you leave the device on, the cells will drain and die. Eneloops don't have this issue. So eneloops for tx/rx. The one disadvantage, if you are used to lipo's light weight, eneloops will affect the balance. (including in my tx which is MUCH heavier with the eneloops) On Sun, May 11, 2008 at 10:22 AM, Bill's Email [EMAIL PROTECTED] wrote: I'm using them in a 3-channel transmitter. They run it (Futaba PM) for 14 hours and hold their charge on the shelf like a lipo. The internal impedance is 25 milliohms. So not great, about the same as the Santo 2700 AA cells. Here's their website: http://www.eneloopusa.com/ Cell Specs: http://www.eneloopusa.com/pdf/HR-3UTG_Spec-eneloop.pdf Neat cells. Treat like a NiMH and they act like a Lipo (with respect to holding the charge on the shelf). Bill Robert P Buxton wrote: Has anyone on the exchange had any first hand experience with these batteries. I acquired 4 from a friend and made up a flight pack. Cycled them twice and they were right on the money at 2000mA. My concern is that I will be running 6 JR digital servos on this battery, therefore does anyone know the internal impedance for these batteries? All comments welcome RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Sanyo AA Eneloop Rechargeable Batteries
see http://www.eneloopusa.com/pdf/HR-3UTG_Spec-eneloop.pdf Mark Holm [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Sanyo AA Eneloop Rechargeable Batteries
I am using enloope's in a 4 cell pack in all my contest planes ( 2 Perfects and a Shadow). I am using airtronics 761's and JR 368's servo's. They charge out in all cases right on the money and it would appear that I use up about 500 Mah per hour or in Voltage reading they come off the charger at 5.8v settle down to about 5.72 v and after about an hour of 1 minute tasks they are down to roughly 5.3v. I have not measured the internal cel resistance (not sure of an exact procedure to be honest) however when I get them home and cycle them I always have at least 1300 MAh left after an hour. I have NOT run them much more than an hour and a half since these are new batteries and I have little time to do a full test however at 300Mah discharge they take 3 hours to reach a full discharge. I also use them in my TX packs on my stylus. The cells are a very tight fit for this application and you have to modify the cartridge to get them to fit. I think in general although they work well in this application giving me about 6 hours of run time I would just use a 3000mah Lipo battery instead. It would be easier to fit and it would last all day. I tested the self discharge rates of the RX packs and after 6 months the pack was still at 5.6v which was reason enough for me to try them since I can literally store them all winter without fear of a deep self discharge. I can now charge--- store fly although I am religious about checking voltage between flights. Costco is selling these batteries cheap and they appear to be working quite well though I have seen sanyo with a 3500 MAH battery as well. I think this has typical self discharge features though. Let me know if you need more data. On Sun, May 11, 2008 at 5:43 AM, Robert P Buxton [EMAIL PROTECTED] wrote: Has anyone on the exchange had any first hand experience with these batteries. I acquired 4 from a friend and made up a flight pack. Cycled them twice and they were right on the money at 2000mA. My concern is that I will be running 6 JR digital servos on this battery, therefore does anyone know the internal impedance for these batteries? All comments welcome Regards, Robert *Robert P Buxton *CONFIDENTIALITY NOTICE: This email message, including any attachments, is intended only for the use of the intended recipient(s) and may contain information that is privileged, confidential and prohibited from unauthorized disclosure under applicable law. If you are not the intended recipient of this message, any dissemination, distribution or copying of this message is strictly prohibited. If you received this message in error, please notify the sender by reply email and destroy all copies of the original message.
