โJan-10-2015 02:40 PM
โJan-14-2015 01:54 PM
smkettner wrote:NinerBikes wrote:Sure but the device may still be obsolete before the battery dies. Actually it depends on the device BMS as it might already be programmed to use the middle 80%. It does speak for not letting a device sit empty for extended periods or plugged in continuous.
Would bouncing around in the middle 80% be true also for smart phone batteries?
โJan-14-2015 01:28 PM
NinerBikes wrote:Sure but the device may still be obsolete before the battery dies. Actually it depends on the device BMS as it might already be programmed to use the middle 80%. It does speak for not letting a device sit empty for extended periods or plugged in continuous.
Would bouncing around in the middle 80% be true also for smart phone batteries?
โJan-14-2015 01:23 PM
Dakota98 wrote:
ONLY 252 Lbs. !!!! :S
โJan-14-2015 07:15 AM
โJan-14-2015 06:04 AM
smkettner wrote:
The BMS will cut power before the damage occurs. I believe the BMS will allow 100% DoD based on capacity and staying above that minimum voltage. Voltage will get into that curve toward the bottom but the cut-off is complete as the contactor opens. Not the same as a brown out as your 12v flooded battery goes below 11 volts.
The best part is you can keep your solar producing max all day as the lithium battery does not taper charging anything like the flooded battery. And no need to ever get to 100% to preserve battery life. Yes bouncing in the middle 80% of capacity is best for longevity on a lithium battery.
โJan-13-2015 07:15 PM
โJan-13-2015 07:14 PM
horton333 wrote:
Places like Tesla, one of the highest tech car companies in the world, still get fires in their cars from time to time and so does every laptop manufacturer out there. Tesla use titanium shields to protect people, they know the hazards. They have extremely advanced charging and temperature monitoring systems, yet still some catch fire. I think they are the way of the future, but I would not go in without investigating the very real issues and making sure the risk is contained.
I note the smaller batteries they advertise seem to have more built in safeguards than this one, may be a better choice. Not sure.
โJan-13-2015 09:37 AM
โJan-13-2015 08:23 AM
โJan-13-2015 07:07 AM
โJan-13-2015 07:05 AM
โJan-13-2015 06:51 AM
โJan-13-2015 06:17 AM
โJan-12-2015 09:03 PM
horton333 wrote:LFP won't catch fire unless under EXTREME overcharging. Something that will never happen with typical RV charging. First, you would have to exceed the batteries charging limits. How many people here have a 1C charger let alone 3-5C? Two, you need to extremely overcharge for hours and hours. People on the DIY EV forums have purposely overcharged their LFP batts and the most that happened was severe bulging of the case. As was stated all lithium ion batt chemistries are NOT the same. The fires you hear are from LiCo batts. LFP is a different beast. If you're afraid, I understand but please don't use your fear to spread ignorance.
I understand there are in excess of 200 differing battery chemistries that are based on Lithium, but the comments I have read from the engineers are that any can catch, and do, fire. Whenever you have increased energy density this is something that needs to be planned for.