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othello · 01.27.2009, 09:10 AM

Only good experiences with Hyperion chargers too (using a 1210i). To backup BrianGs numbers:

While charging 9s A123 the 1210i charger shows 30,85V @ 5,4A (166,59W) and my power analyzer reads 221,5W at the 220V socket. I use a Graupner 12V 20A PS. Meaning the whole charging process has a 75% efficiency. Both integrated fans (charger+PS) have to get rid of 54,91W lost as heat.

	(#8)
othello HV basher Offline Posts: 392 Join Date: Jun 2007 Location: Austria (Europe)	01.27.2009, 09:10 AM Only good experiences with Hyperion chargers too (using a 1210i). To backup BrianGs numbers: While charging 9s A123 the 1210i charger shows 30,85V @ 5,4A (166,59W) and my power analyzer reads 221,5W at the 220V socket. I use a Graupner 12V 20A PS. Meaning the whole charging process has a 75% efficiency. Both integrated fans (charger+PS) have to get rid of 54,91W lost as heat. Brushless 1:5 custom 4wd Baja based on 1:8 truggy chassie Jazz 55-10-32, Neu 1515/2Y (1100kv), 9s2p A123 (27v), up to 3.1KW Latest video with eagletree Data inserts: Run on asphalt