Re: [RE-wrenches] Battery Boxes?

2010-07-15 Thread Ken Schaal
We build our own boxes using a cement board like 4x8 sheets of Hardi Board--fireproof, strong enough , with appropriate bracing, to take the inevitable ' stuff ' that gets piled on top of boxes in garages,etc. If you need acid resistance, coat the inside with an epoxy paint, like garage floor p

Re: [RE-wrenches] Best practices for mounting on cedar shake roof?

2010-07-15 Thread Ken Schaal
The last time I used Geocel--many years ago-- it reacted with asphalt negatively. I find it hard to beat plain black silicone to seal lags and bolts, especially when under compression. Lasts forever ! Well, looks like new even after 30+ years. Perhaps the current Geocel is a different formulati

Re: [RE-wrenches] Trojan L16 2v vs 6v

2010-07-15 Thread Phil Undercuffler
Wow, this has been a wonderful and fruitful thread. First, Ron let me thank you for some impressive responses, and great information. I have some nits, but those are small and inconsequential, so I'll leave them to later. However, I want to chime in a bit just to set a frame of reference, if ever

Re: [RE-wrenches] Outback Charging Method

2010-07-15 Thread Mark Frye
Jay, I took your advice on removing the foam and vents and it did make a significant difference in the available charging power. Thanks for the tip. Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 www.berkele

Re: [RE-wrenches] Trojan L16 2v vs 6v

2010-07-15 Thread Ronald Paredes
Hello Ray, Glad to be helpful... The basic scope of the IEC 61427standard is to provide general information relating to the requirements of batteries in RE applications, and more importantly, the test methods that will test the battery's ability to do well in RE applications. The standard cove

Re: [RE-wrenches] Trojan L16 2v vs 6v

2010-07-15 Thread Ronald Paredes
Hi There Darryl, Your recommendation to customers is 100% accurate… It is better to use low charge currents There is really no limit to how high the initial charge current can be. A good way to determine how high the initial charge current can go is to use the Ampere hour law, which states tha

[RE-wrenches] Big Bank Charging and S.G. Data

2010-07-15 Thread Mark Frye
If any of you wrenches who work with big battery banks and Outback equipment would like, contact me off-list and I will send you some recent information I gathered from my system. I need a reality check on my view of the information. Thanks, Mark Frye Berkeley Solar Electric Systems 303 Redbud

Re: [RE-wrenches] Trojan L16 2v vs 6v

2010-07-15 Thread Blair May
Travis, I would strongly suggest you review the 2vt cells. 3 strings of 40...@20 hr is 1200AH. ONE set of the Surrette 4-KS 21Ps is 1104 Ah/20hr or the 4-KS25PS is 1350ah. If this BB is going to be replaced then the interconnects will also be replaced.I just priced a 24 v BB & the price for the L16

Re: [RE-wrenches] Trojan L16 2v vs 6v

2010-07-15 Thread Darryl Thayer
Hi Ronald Thanks for helping with these battery questions.  I think I have seen improved cycle life increase when I keep the recharge rate lower.  I do not recomsnd a very large generator, in fact I tend to recomend smaller generators. I also believe in SOC charge control, where if the SOC gets