The problem with Battle born heated battery is that it was an after thought. It uses power from the battery to heat itself and may fully discharge the battery.
LiFeBlue battery does not use any energy from the battery for heating. It also has an advanced BMS-heater controller that can pass low current, up to 0.07C, directly to the cells so early morning PV solar power is fully utilized until enough charge current is available to turn on the internal heater. In addition to all batteries having Bluetooth SoC monitoring built in, the Version 3 batteries have dual modbus ports for developing communications and control. https://www.lifebluebattery.com/rv-boat-low-temperature-lithium-ion-batteries/300ah-d-lt-lithium-battery.html Larry Crutcher Starlight Solar Power Systems (Disclosure: I have a financial interest in LiFeBlue Battery) On Jun 5, 2021, at 4:52 PM, Chris Worcester <[email protected]> wrote: Check out Battle Born Batteries out of Reno, they have heater kits available for their LiFePO4 100 ah batteries. Just came out with a 280 ah 8D size, don't see a heater kit for it yet. Will check back in with them soon to see if it's on the shelf. Chris Worcester Solar Wind Works NABCEP PV Installation Professional Cell 530-448-9692 www.solarwindworks.com [email protected] -----Original Message----- From: RE-wrenches <[email protected]> On Behalf Of Dave Angelini Offgrid Solar Sent: Friday, May 21, 2021 12:33 PM To: RE-wrenches <[email protected]> Subject: Re: [RE-wrenches] LiFePo4 Low Temp Charging Damage I can think of a few other things for the wish list! l Closed loop charging with multiple sources. Robust BMS design to not be a new source of power failures Offgrid. Spare BMS for sale with product that is servicable. Gets Soc and temp into Insight and Optics A company that will be there when I need them. Too many players in the battery game right now that I do not know of! Only a few that do most all of these for me. Friday ! Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail [email protected] text 209 813 0060 On Fri, 21 May 2021 12:24:11 -0400, Ray <[email protected]> wrote: > This is the only company I know of that has dealt with the low > temperature charging issue. Its a great product, and the blue tooth > monitoring is an excellent feature too. This is what the other Li+ > batteries should be doing. The big down side is they are currently > limited to 12v. Wish they made a 48v pack. > > https://www.lifebluebattery.com/rv-boat-low-temperature-lithium-ion-batteries/index.html > > Ray Walters > Remote Solar > 303 505-8760 > > On 5/21/21 12:12 PM, Larry wrote: >> My personal opinion is that you should not buy any lithium battery >> that does not provide adequate protection for all modes of operation. >> >> Freezing does not damage the battery; charging a frozen battery may >> damage it quickly. Trickle charging the battery is not the solution. >> >> There are two solutions: provide a heat source to keep the batteries >> above freezing or incorporate a temperature controller to disable the >> charger if the battery is unsafe to charge. >> >> Larry Crutcher >> >> >>> On May 21, 2021, at 8:44 AM, Mark Frye <[email protected]> wrote: >>> >>> Folks, >>> >>> If I have a charger that does not have low battery charge cut-off, I >>> can get in trouble if I have a frozen pack and apply a charging voltage. >>> >>> But, if I start with a pack that is above freezing and keep a >>> trickle charge on it, can I keep that pack safe from freezing and damage? >>> >>> Or at some point, as ambient temperature drops, the pack will freeze >>> and be damaged anyway? >>> >>> Thanks, >>> >>> Mark Frye >>> >>> >>> _______________________________________ >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try >> the other: >> https://www.mail-archive.com/[email protected]/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. 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