House battery question

Topic: House battery question (Read 2470 times) previous topic - next topic

Re: House battery question

Reply #50 – September 23, 2020, 10:46:58 pm

I went with silicone batteries because of the cold and that they can charge faster. So far they have been fine but it is this winter that I
will really test them.

Re: House battery question

Reply #51 – September 23, 2020, 11:58:42 pm

12V 170Ah LiFePO4 Power Block (PRE-ORDER) - BigBattery.com

I received this in a email yesterday there is also a 10 pct additional discount available. Maybe of interest.? Opinions?

Remember if you are a member of dieselrvclub.org. that there is a discount for purchases like batteries!!!. Also they offer military and their club discount. If you can stack is unkown.

Re: House battery question

Reply #52 – September 23, 2020, 11:59:57 pm

When BB LiFePO4 batteries are cold they should only be charged at a low charge rate. Once they begin to charge and discharge they get warmer by use and can be charger at higher rates. What is the temperature at the battery terminal? Their own temperature sensor is internal.
I have each of my 6 BB LiFePO4 batteries heated with thin film heating pads, 18 watts on low and 36 watts on high, powered by the batteries themselves. These increase the battery temperature by 30 - 40 degrees, enough to start charging an otherwise cold battery at outside temperatures below zero. As soon as the batteries are being charged and are in use the heaters are turned off even at zero degrees and the batteries in the battery compartment are sufficiently warm by use and the warmth in the basement.

You either avoid solutions to problems you don't understand and do nothing or you solve the problem.

Re: House battery question

Reply #53 – September 24, 2020, 12:08:22 am

I looked at the connectors that go with the battery pack and don't know how they could transfer the power. Maybe something I don't understand.

Re: House battery question

Reply #54 – September 24, 2020, 12:19:53 am

Interesting BigBattery option, no warranty information. The anderson cable they sell is only 6 ga wire. Seems really small. And it doesn't appear to say if the dimensions include the Anderson plug or show how it plugs in.

BatteryCables has Anderson connectors with 3/8" ring ends on 1/0 cable. Probably more suitable for connecting to a bus bar. Add $44 plus shipping for each battery.

Anderson SB175 Copper Battery Cable Assembly 1/0 Gauge AWG w lug/terminal/clamp

Worth some more research.

Re: House battery question

Reply #55 – September 24, 2020, 12:27:39 am

That connector makes more sense. Their address is about a mile away from here and this looks like a new product they are getting into. They mainly refurbish and sell surplus batteries.

Re: House battery question

Reply #56 – September 24, 2020, 11:51:15 am

Quote from: craneman – September 24, 2020, 12:27:39 am

That connector makes more sense. Their address is about a mile away from here and this looks like a new product they are getting into. They mainly refurbish and sell surplus batteries.

Chuck you could be our on the ground man to negotiate a mass discount for the Foretravel bunch?? Delivery to quartzite

Re: House battery question

Reply #57 – September 24, 2020, 12:45:58 pm

Quote from: Roger & Susan in Home2 – September 24, 2020, 12:19:53 am

Interesting BigBattery option, no warranty information.

"BigBattery offers a 30-day warranty from delivery date on all of our products."

Damaged/Defective/Incorrect Items:
"Should you receive a damaged, defective, or incorrect item, please contact us immediately. Once we receive your request, we will be in contact with you to address and resolve the issue."

I have no problem buying a product from bigbattery.com with only a 30 day warranty. That way I am not paying for others mis using the product, and having to join all buyers paying for the errors of others.

Will Prowse recently pulled a review video of one of their products. Which I believe, may be because he is doing or planning an update, possible of their upcoming product.

What I remember was he praised the new cells used, even did a load and capacity test. He also liked the bms. He did not like the gauge of wire used, or rating of installed breaker, when compared to rated amp draw capacity rating. For those reasons he said he could not reccomend and that he would contact bigbattery.com
I believe he will follow thru on this and do a update of the review for the upcoming product.

I have followed bigbattery.com for several months and they appear to have a good following, and they often sell out quickly of their newly listed inventory. Will Prouse has in the past commented on their integrity in a positive way, and also noted their testing procedures. He especially liked having a supplier here in the states, compared to the almost impossibility to trust or communicate with a supplier in China. With their ties to Will Prouse, I expect to see their products only continue to improve. The big problem I see with China supplied assembly is inconsistent performance in assembly.

Re: House battery question

Reply #58 – September 24, 2020, 04:05:51 pm

30 days? I don't think so. Buy six and hope four are still working after 30 days. Do you feel lucky?

6 ga wire doesn't even show up on the charts for a 175 amp 6 ft round trip. You need 1/0 cables.

Buyer be careful.

Re: House battery question

Reply #59 – September 25, 2020, 03:00:37 pm

Battle born doesn't recommend their lithium for cold cranking. Is this a problem for gen start? For emergency engine start?
200 cca for 30 seconds for each 100 amp battery.

Re: House battery question

Reply #60 – September 25, 2020, 03:39:05 pm

Mine start the gen. It is a pretty easy start especially with 3 or more batteries. I wouldn't use them for start batteries for the big motor. An occasional boost is OK.

Re: House battery question

Reply #61 – October 04, 2020, 06:48:41 pm

Quote from: Caflashbob – September 22, 2020, 02:23:43 pm

Agm's require temp controlled charging and need a full recharge each cycle. Cannot be equalized to restore capacity loss from short cycling. Other than lifelines.

1/2 the cycle life of gels normally

A full recharge could be a problem for people like me who are off grid for long periods of time or for those who boondock in places like Quartzsite, especially with the winter solstice coming up.
Right now, I'm looking for 6 volt lead acid golf cart batteries (20 amp hour rate: 215) which Sam's Club has the best deal on but Sam's is out of them and they have no idea when their stock will be replenished.

Re: House battery question

Reply #62 – October 04, 2020, 07:45:52 pm

Here are the data sheets for Lifeline 8D AGM batteries and Trojan 8D GEL batteries and FullRiver 8D AGM batteries.

Lifeline and Trojan batteries with an average 25% discharge will get just over 2000 cycles. FullRiver batteries get about 2200 cycles.
Lifeline and Trojan batteries batteries with an average 50% discharge will get about 1000 cycles. FullRiver batteries get about 1200 cycles.

Cycle life based on depth of discharge is virtually the same for AGM and GEL batteries today. In some cases AGM batteries will outperform GEL batteries for cycle life.

30 or 40 years ago cycle life might have been different but no longer.

Re: House battery question

Reply #63 – October 04, 2020, 07:50:49 pm

I never pay attention to the temp on our AGMs and charge when I can. I don't have a temp sensor on them. Still going strong 12 years later.

A lot of people who dry camp like the L-16 six volt batteries. Bigger than golf cart batteries. I had two in my bus.

Pierce

Re: House battery question

Reply #64 – October 04, 2020, 07:56:58 pm

The gels are best at short cycling as far as I know. Except for lithium of course. Flooded cell and non lifeline agm's not so much

Re: House battery question

Reply #65 – October 05, 2020, 08:57:57 pm

I'm exploring all my options. My question is, our 2001 coach now has agm Lifelines. Should someone choose to install say, 6 Trojan T 105's, should they be concerned about VENTING??? Asking for a friend.

Re: House battery question

Reply #66 – October 05, 2020, 09:20:34 pm

Quote from: GleamB – October 05, 2020, 08:57:57 pm

I'm exploring all my options. My question is, our 2001 coach now has agm Lifelines. Should someone choose to install say, 6 Trojan T 105's, should they be concerned about VENTING??? Asking for a friend.

I use 6 GC2 lead acid batteries and have a watering system. My battery compartment has a cover which encloses all the batteries. There is a vent hole in the cover and a pipe that vents any gases out another hole. I'll try to get a photo tomorrow.
Sam's Club sells GC2 batteries which are similar to the T-105's but are priced at 89.95. I got 6 years out of the last 6 batteries I bought and I'm sure I would have gotten at least another year except one battery went bad. I had to take 2 batteries out of service.

Re: House battery question

Reply #67 – October 05, 2020, 09:58:55 pm

Be afraid of flooded cell batteries in a compartment made for sealed batteries

Re: House battery question

Reply #68 – October 05, 2020, 11:50:12 pm

Glenn, in your battery bay with the slide side truss you should be able to get six DC 335-6 Full River batteries. 1005 amp hrs. 616 lbs, about 50 lbs more than 3 8Ds and the fold down upper rack which you won't need. L16s in that space would be ahrd to get in and connect with the limited space.

DC335-6 | Fullriver Battery

Another option.

Re: House battery question

Reply #69 – October 05, 2020, 11:57:15 pm

Here is Aaron's reply to my inquiry yesterday about the heated li ion 8d's

We do plan on releasing a higher capacity battery this year, but do not have a formal release date. I would recommend signing up for our newsletter on our website to get the latest news on when we release new products.

agm's ,other than lifelines, cannot be equalized to restore lost capacity from short cycling.

Desulfurization devices are reported to help over long term although.

Gels and li-ion can take short cycling easier.

Re: House battery question

Reply #70 – November 02, 2020, 03:55:16 pm

I wanted this to be seen. So I thought it would fit in here.

https://youtu.be/RxMIs0PXrBw

There is usually a 10% discount for Big Battery products. They also have some 24V and 48V options. The grey battery is their product in this test. Note: the cold shutoff test.
Mark

Affiliate Notice