Many big-box electronics and home improvement stores have battery recycling/safe disposal - think Best Buy. Interstate Battery franchise locations are another good bet.
Mark > On Sep 1, 2015, at 09:32, David Carter <[email protected]> wrote: > > Follow up: What’s a safe disposal method for a dead battery? :) > > Dave > >> On Sep 1, 2015, at 10:08 AM, Kieran Sullivan <[email protected]> wrote: >> >> The battery is a single cell LiPo battery with all protection circuitry >> removed. That means you have to make sure you do not discharge it bellow >> 3.3V (best not go below 3.6V). The charge circuitry should make sure that >> the battery does not go above 4.2V while charging either - but that’s >> already done perfectly by the Telemetrum. >> >> So, if you drain the battery below about 3.3V by leaving the telemetrum >> switched on, the battery will die and stay dead. The swelling of the battery >> is a great indication that it needs to be replaced. >> >> This is all ‘normal’ for a LiPo and nothing really to do with the Telemetrum >> itself. Another best practice is to discharge the battery to a long term >> storage level - I think that’s around 3.8V or so if you’re not actively >> using it for a few weeks. >> >> Another really good tip is to never puncture the battery by drilling through >> it or using a screw that’s too long while fitting the avionics bay - DAMHIKT! >> >> Kieran >> >>> On 1 Sep 2015, at 14:51, David Carter <[email protected]> wrote: >>> >>> I was let down by the battery last weekend. While it is probably my fault, >>> it meant I had to swap out the TeleMetrum for a non-trackable flight >>> computer. This led to an hour of whacking bushes so to speak in farmers >>> fields. This is what I got the TeleMetrum to prevent. So I have some >>> questions about the best way to care for and handle the battery. (I’m using >>> the 900 MaH LiPO) >>> >>> When I last used the device, I’d returned from the field exhausted. I just >>> set the rocket aside with the battery still connected to the TeleMetrum. I >>> knew this would drain the battery, but I thought it would be no worse than >>> that. When I did take it out to charge, I found that I’d actually left it >>> on, so it had been transmitting until it died. Oops. So I put it on to >>> charge overnight before bringing it to the field. >>> >>> I’d never actually checked it until I got to the field. The battery hadn’t >>> charged at all. It was dead. I put it on a car charger for a little while, >>> but I was getting nothing. So I had to swap it out for another, less >>> capable, computer. When I removed the battery from the foam I had wrapped >>> it in, I also noticed that it had swollen, and was no longer the flat >>> battery I had put in. >>> >>> So my questions are: >>> >>> 1. Is it normal for a battery to fail after being fully and completely >>> discharged, or do I have a bad battery? >>> 2. Is the swelling of the battery normal? If not, what would cause this? >>> 3. What are some good ‘Best Practices’ for the care and handling of the >>> battery? >>> >>> David Carter >>> NAR 98850 Level 2 >>> KC3FEW >>> >>> _______________________________________________ >>> altusmetrum mailing list >>> [email protected] >>> http://lists.gag.com/mailman/listinfo/altusmetrum >> >> _______________________________________________ >> altusmetrum mailing list >> [email protected] >> http://lists.gag.com/mailman/listinfo/altusmetrum > > _______________________________________________ > altusmetrum mailing list > [email protected] > http://lists.gag.com/mailman/listinfo/altusmetrum _______________________________________________ altusmetrum mailing list [email protected] http://lists.gag.com/mailman/listinfo/altusmetrum
