X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=doc%2Faltusmetrum.xsl;fp=doc%2Faltusmetrum.xsl;h=aa218c5cc598fffa26f33479ecc2cc8d2816a4d6;hb=4925a6f2f4edd5b54641a5240030e5c0e3e95db6;hp=b2677a029ed9c66f3c33b3861fddb0382ece3ee0;hpb=6fa1ec0dbf2a4eda8d061c67b3779b83b88f29f0;p=fw%2Faltos
diff --git a/doc/altusmetrum.xsl b/doc/altusmetrum.xsl
index b2677a02..aa218c5c 100644
--- a/doc/altusmetrum.xsl
+++ b/doc/altusmetrum.xsl
@@ -277,6 +277,17 @@ NAR #88757, TRA #12200
apogee and main ejection charges. All Altus Metrum products are
designed for use with single-cell batteries with 3.7 volts nominal.
+
+ The battery connectors are a standard 2-pin JST connector and
+ match batteries sold by Spark Fun. Other vendors sell similar
+ batteries for RC aircraft using mating connectors, however the
+ polarity for those is generally reversed from the batteries used
+ by Altus Metrum products. In particular, the Tenergy batteries
+ supplied for use in Featherweight flight computers are not
+ compatible with Altus Metrum flight computers or battery
+ chargers. Check polarity before connecting any battery
+ not purchased from Altus Metrum or Spark Fun.
+
By default, we use the unregulated output of the Li-Po battery directly
to fire ejection charges. This works marvelously with standard
@@ -2199,7 +2210,7 @@ NAR #88757, TRA #12200
- RF interface for battery charging, configuration, and data recovery.
+ RF interface for configuration, and data recovery.