<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hello Chris,<div class=""><br class=""></div><div class="">LA batteries do not have a BMS that can block current flow to a series group of cells. Balancers are not likely needed but may benefit an aging battery bank. A long enough charge time (CV) on a healthy bank will fully charge all cells even though some cells will experience high voltage. Cross connecting cables between parallel strings will help the even distribution of voltage as it provides alternative paths for current.<div class=""><br class=""></div><div class=""><div class=""><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;">Larry Crutcher</div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;">Starlight Power Systems</div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;"><br class=""></div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br class=""></div>
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<div><br class=""><div class="">On May 16, 2023, at 6:24 AM, Christopher Warfel via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" class="">re-wrenches@lists.re-wrenches.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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<div class=""><p class=""><font size="4" class="">Would you recommend that for FLAs? Thank you,
Chris</font><br class="">
</p>
<div class="moz-cite-prefix">On 5/15/2023 6:12 PM, Starlight via
RE-wrenches wrote:<br class="">
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<blockquote type="cite" cite="mid:A9D504BD-EA9D-491C-A8B8-491AA83E84C7@starlightsolar.com" class="">
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Jay,
<div class=""><br class="">
</div>
<div class="">I started recommending the Victron battery balancer
for all series and series/parallel Li battery banks. It has
eliminated trouble in some problematic systems. If you reach a
cell over-voltage in the Kilovault BMS, it will block current
flow, preventing the other series batteries from charging. This
also causes havoc with connected equipment as the battery
appears to have disconnected.</div>
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<div class="">
<div class="">
<div style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class="">Larry Crutcher</div>
<div style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class="">Starlight Power Systems</div>
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<div class="">On May 15, 2023, at 12:17 PM, Jay via
RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" class="moz-txt-link-freetext" moz-do-not-send="true">re-wrenches@lists.re-wrenches.org</a>>
wrote:</div>
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<div class="">
<div class="">Hi All<br class="">
<br class="">
I’m wondering what the thoughts are on using or not
balancers for 2 12v lithium in series for 24v system. The
batteries don’t have any series communication. <br class="">
Kilovault if that matters. <br class="">
Not my design. <br class="">
<br class="">
It would seem to be a good idea, with victron having a
good one. <br class="">
<br class="">
Thanks in advance<br class="">
<br class="">
Jay<br class="">
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