<div dir="ltr"><div>The default settings on the PS2512 don't look too bad for LFP -- 14.4 absorb and 13.4 float. The 2 hour default absorb could be the issue, if you didn't turn the generator off or unplug from shore power after it reached absorb voltage. And it would depend on the BMS for the battery that you use... the rackmount EG4's that I've used don't really like more than 14.1 or 14.2 for very long, even though you could custom set your own BMS for 14.4 without problems with a 4 cell LFP. Most rackmount batteries are not rated for mobile use with vibration and such anyway though... I think I've seen some of the cheap Li-time batteries that spec 14.6 volts, so might work with that -- though I've also found that a lot of them give you the spec for the emergency shutoff voltage, not the recommended absorb voltage. Also, a lot of the cheaper BMS's can't handle the capacity surge from turning on a large inverter like this, so would need a precharge circuit too. I think it's probably possible, but not a definite yes to switch it to LFP.</div><div><br></div><div>Zeke</div><div><br></div><div>> On Wed, Apr 22, 2026 at 10:52?AM Chris Daum via RE-wrenches <</div>
> <a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br>
><br>
>> Hi folks:<br>
>><br>
>><br>
>><br>
>> Some of these antiques just won?t die. I have a fellow with a Trace<br>
>> PS2512 in his RV (lightly used). He?s very interested in lithium batteries<br>
>> ? there is no PV in this system; his battery charging is done by shore<br>
>> power or generator. Is there any sort of remote that will work with his<br>
>> old beast, so he can accommodate the LFP technology? Or is he doomed to<br>
>> upgrade his inverter? Any advice is very helpful. Of course, the manual<br><div>
>> for the PS series doesn?t mention LFP technologies!</div><div><br></div><div><br></div><div><br clear="all"></div><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr">Zeke Yewdall<div>PV Engineer</div><div>NABCEP #031508-89</div><div><a href="mailto:zeke@darkforestsolar.com" target="_blank">zeke@darkforestsolar.com</a></div><div>303-523-3592</div></div></div></div></div></div>