mena661 wrote:
Niner, equalization voltage recommended by MEX is 5% of the 20 hr rate. I typically charge until SG stops rising in all the cells or when I hit 16V (I'll let them cool and come back later for another round...only happened once). I have a good charger for this from HF also recommended by him. It's a heavy transformer based one (just need to slow down the voltage rise for it to be perfect). All that is dependent on temps (Trojan has SG and voltage temp compensation in their users guide).
I am confused here. 20 hour rating is in amperage... so 5% of 150Ah is 7.5 amps. Now, at what voltage do we want the battery to finish at at 7.5 amps? 16.0, 15.7, or are we going to be testing the SG every 10 minutes? Is 1.260 SG good on my Nevermax 24 with 75 Ah? Is the chemistry different on a Trojan with heavy plates that 1.280 or 1.275 is where an equalized battery should sit? 1.290 is too high /hot. What about summer blend SG's for semi tropical and tropical temp areas in the desert?
Variables, variables, variables. Think I'll hop on over to a Harbor Freight and give my CTek 7002 US a rest, stupid thing cost me a fortune for a bunch of BS hype.