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| Electric Flight Discuss Electric Flight in Canada |
Topic Review (Newest First)
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| 02-12-2020 05:32 PM | |
| mgkluft |
Re: How long can I store my Lipo without adding some charge Thanks very much, Len. That is very helpful. I've got the bits to make one, but I would have forgotten about moving the negative along, and always used the black for negative. |
| 02-11-2020 12:33 PM | |
| stegl |
Re: How long can I store my Lipo without adding some charge I made up a short lead that plugs into my smart charger set for one cell and max 1 amp. rate and at the other end I have a 2 pin plug + and- that plugs into the balance plug. I can either charge the low cell or discharge the high cell to get them to match. For example; on a 4 cell pack if I have one cell that is low , I select those pair of pins in the balance plug and charge it to the voltage as the others . If I have two low I bring those up the the higher ones. In the first picture shows the individual cell lead with the red + and the black - . In the second picture you have it plugged into cell number one with the black - always toward the the black- wire of the balance lead with the white being positive. To go to cell number two ; you plug into the next two terminals. again, with the black always toward the black ground of the balance plug and so on. In this case , for cell number two , the white wire becomes ground (negative -) and the red becomes the positive +. MAKE SURE THE TWO BANANA PLUGS ARE PLUGGED INTO THE CORRECT OUTPUTS OF THE CHARGER BEFORE PLUGGING INTO THE BATTERY OR YOU WILL SEE MANY SPARKS , IF THEY SHORT OUT. Easy to make and if you want I can make them for you ....$6 will cover 4mm plugs, heat shrink, wire and pins and mailing first class mail at buyers risk ; no charge for labor. I just want to cover the replacement of my parts. PM me if you want one. Thanks |
| 02-11-2020 09:58 AM | |
| mgkluft |
Re: How long can I store my Lipo without adding some charge Very clever, Len. Do you have a picture or could you post short description? I have a couple of LiPos that won't balance normally. They are only out by 0.02 or 0.03 V, so maybe that's ok, but I'm still interested. Thanks, Martin |
| 02-11-2020 01:08 AM | |
| stegl |
Re: How long can I store my Lipo without adding some charge The only batteries that may need cycling are the almost non existent Nicads and some Nimh. Yes , check the lipos to see if all cells match. If low , plug into your smart charger , set to storage and when it shows storage completed . Unplug and done. Suggested storage voltage between 3.8 and 3.85 works well. Not really critical . A big waste of time to discharge and recharge to storage... not needed. Another suggestion though ...... if you just have one or two low cells in a pack ; I have made up a single cell Charge lead and select that cell through my balance lead and bring the low cell up to storage charge. |
| 02-10-2020 09:25 PM | |
| Stickjammer | Thanks for your help ive decided to check them all and cycle the ones that need a bit more charge |
| 11-27-2019 03:06 AM | |
| floyd |
Re: How long can I store my Lipo without adding some charge I've had Lipo's in storage mode for over 4 years with no issues after I started using them again. But I now check the voltage every few months to make sure. Cheers Floyd |
| 11-26-2019 09:49 PM | |
| Shawnlh |
Re: How long can I store my Lipo without adding some charge I've been flying large electric for a long time, and I have some lipos that are over 5 years old and still going strong. Some info I found about long term storage that I've stuck with is to "cycle" them every 3 months. My charger (PL8 Duo) has this feature built in and it automatically puts the packs back to storage voltage after, simple plug and play. And I just do however many packs per day as is convenient till they're all cycled. |
| 11-26-2019 09:14 PM | |
| Max |
Re: How long can I store my Lipo without adding some charge Just check the voltage of each cell. If it is at 3.79 or 3.80 (or a bit higher), leave it alone. I keep a bunch of batteries "on reserve" I check my battery reserve once a year, and some of the packs have been sitting for several years and they are still at 3.8/cell |
| 11-26-2019 08:41 PM | |
| Stickjammer |
How long can I store my Lipo without adding some charge So, at the risk of coming off as lazy... I haven't flown this past year or so but I know I will get the itch again in the Spring. I always leave my batteries at storage voltage however, theyve been stored now for more than one year. Constant temp is about 18 Celsius downstairs. Should I be adding some charge to them periodically or am I ok to ignore them for a while longer? I have 12 so its a few hours of work. Ok that sounded lazy but the any intel on this front would be appreciated |
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