<div dir="ltr"><a href="http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=SMT3000RM2U&total_watts=700">http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=SMT3000RM2U&total_watts=700</a> It should be ok, it also has thermal a shutdown.<br>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jul 9, 2013 at 3:22 AM, Alex Carver <span dir="ltr"><<a href="mailto:agcarver+ale@acarver.net" target="_blank">agcarver+ale@acarver.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On 7/8/2013 22:42, gcs8 wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
new option right at 600 watts<br>
<a href="http://www.frys.com/product/6173999?site=sr:SEARCH:MAIN_RSLT_PG" target="_blank">http://www.frys.com/product/<u></u>6173999?site=sr:SEARCH:MAIN_<u></u>RSLT_PG</a><br>
<br>
e bay option ~1KW<br>
<a href="http://www.ebay.com/itm/APC-UPS-XS-1500-Battery-Backup-Power-Supply-BX1500-Tested-FREE-SHIP-/141012115796?pt=US_Uninterruptible_Power_Supplies&hash=item20d4fa2154" target="_blank">http://www.ebay.com/itm/APC-<u></u>UPS-XS-1500-Battery-Backup-<u></u>Power-Supply-BX1500-Tested-<u></u>FREE-SHIP-/141012115796?pt=US_<u></u>Uninterruptible_Power_<u></u>Supplies&hash=item20d4fa2154</a><br>
<br>
<br>
shop around a little, my suggestion is do math on finding units with no<br>
battery and where you can get the batterys local for a good price, I use a<br>
3000kva APC that sits in my rack at the house, I have been thinking about<br>
building a bigger battery pack for it but it does its job.<br>
</blockquote>
<br>
<br></div>
One word of caution with this is to make sure the UPS has some type of active cooling especially for smaller units that weren't originally designed for large battery packs. Part of the operating thermal budget on some of the less expensive, passively cooled systems involved assuming the battery pack is a fixed capacity which would run down in a short period of high load. The temperatures would climb inside the inverter but the battery dies before the inverter gets too hot. With a bigger battery pack shoehorned in, you reach an overtemperature condition long before the pack dies. The inverter dies instead. A UPS with active cooling can handle the bigger pack.<div class="HOEnZb">
<div class="h5"><br>
<br>
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