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 > Anyone using Lithium batteries? Comments?

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VA-Apraisr

glen allen, VA

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Posted: 09/29/20 12:59pm Link  |  Quote  |  Print  |  Notify Moderator

Cold temps are not an issue here in Virginia (seldom see even +20 degree days). Yeah, pretty sure I'm going to invest the $$$ and go this route so I can just RELAX on the beach, watch TV, and STOP watching the voltage meter on my cabinet wall [emoticon]

ron.dittmer

North-East Illinois

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Posted: 09/29/20 06:04pm Link  |  Quote  |  Print  |  Notify Moderator

Are your current AGMs two-12V batteries, or two-6V batteries? I ask because two 6Vs perform so much better as a pair compared to two 12V batteries.

If you later learn that Lithium can't be applied for whatever the reason, try two 6V AGMs. I went from two-12V wet acid to two-6V AGMs and "WOW" what a change for the better. I had considered Lithium, but my 2007 model year whole house inverter/charger can't handle Lithium.


2007 Phoenix Cruiser model 2350, with 2006 Jeep Liberty in-tow


bobndot

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Posted: 09/29/20 09:14pm Link  |  Quote  |  Print  |  Notify Moderator

Thank you craz z and pianotuna for the info. Much appreciated.

bobndot

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Posted: 09/29/20 09:23pm Link  |  Quote  |  Print  |  Notify Moderator

Quote:

just RELAX on the beach


beaches, I have heard of them. [emoticon]

[image]

pnichols

The Other California

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Posted: 09/29/20 10:28pm Link  |  Quote  |  Print  |  Notify Moderator

pianotuna wrote:

craz z wrote:


The SIO2's dont look much better stat wise then a agm and way more expensive.


Then find me a battery that can be charged at -40 and can also survive being discharged totally 620 times before it degrades to 80% of OEM capacity?

Cycle life cost is cheaper than AGM.


Don - excellent points!!

Studying both SiO2 battery and LiFePo4 battery performance specs, I'm not quite sure I see LiFePo4 benefits head and shoulders above SiO2.

By the way, a lot of LiFePo4 RV battery fans seem to not know that AGM batteries charge much faster (due to their low internal resistance) than good old liquid acid batteries do, too ... just like they claim for LiFePo4 batteries in an RV. For instance, Lifeline AGM batteries are advertised to accept huge charging currents - well beyond liquid acid batteries.

The purchase cost versus lifetime performance difference between the two battery technologies seems to me to be vanishingly small ... or maybe weighted in favor of SiO2 (discounting battery weight - which is not a performance issue).


Phil, 2005 E450 Itasca Spirit 24V

pianotuna

Regina, SK, Canada

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Posted: 09/30/20 12:28am Link  |  Quote  |  Print  |  Notify Moderator

Phil,

The charge rate hardly is an issue. Yes a single Li will recharge faster. But very few of us have only 100 amp-hours.

How many inverter/chargers can do more than 127 amps of charging? I don't know of any at all.

My plans are for 400 to 600 amp-hours of SiO2. 400 may draw 100 amps of charging, and 600 would be 150 amps. So a 400 amp-hour li bank would only charge about 20% faster than SiO2.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

pnichols

The Other California

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Posted: 09/30/20 01:01am Link  |  Quote  |  Print  |  Notify Moderator

pianotuna wrote:

Phil,

The charge rate hardly is an issue. Yes a single Li will recharge faster. But very few of us have only 100 amp-hours.

How many inverter/chargers can do more than 127 amps of charging? I don't know of any at all.

My plans are for 400 to 600 amp-hours of SiO2. 400 may draw 100 amps of charging, and 600 would be 150 amps. So a 400 amp-hour li bank would only charge about 20% faster than SiO2.


Thanks Don, that's about what I would have guessed.

Do you happen to know if SiO2 batteries are made up of a few (3 or 6) big cells like AGM and liquid acid batteries are?

I'm really not a fan of vehicle batteries made up of a whole bunch of little cells that have to be mounted and attached together in a bundle with a bunch of inter-connections -> that you have to trust will remain intact mile after mile, year after year.

pianotuna

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Posted: 09/30/20 01:39am Link  |  Quote  |  Print  |  Notify Moderator

Hi Phil,

I think they are similar to AGM in design.

The company is shortly going to do Li Titinate. No idea of prices. This chemistry brings new meaning to "fast charging". I.E. 6 minutes from dead to fully charged. I expect they are $$$$$

VA-Apraisr

glen allen, VA

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Posted: 09/30/20 03:08pm Link  |  Quote  |  Print  |  Notify Moderator

I had two 12v AGM's and are Optima Blue top. Frankly, I've had nothing but trouble with Optima batteries! Has 4 redtop in my Jeep and now had 2 sets of 2 bluetops in my RV (all replaced under warranty).

Yes, my 2003 Ford has to change out the charger to handle Lithium as well as chassis charger from alternator to batteries. But, I just want less trouble watching TV on the beach and willing to pay for it. And, a 10-year warranty certainly helps as well. I don't follow current technology like you guys are talking about above....too busy working to spend the research time, but, battleborn has been around and seems to have good reviews. I'll follow up after first beach trip at the end of October!!

pianotuna

Regina, SK, Canada

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Posted: 09/30/20 04:48pm Link  |  Quote  |  Print  |  Notify Moderator

VA-Apraisr,

Optima have about 40% less space for active plate material. About the only thing they are good at is vibration resistance. In all other cases, a more conventional design may be a better choice.

* This post was edited 09/30/20 05:03pm by pianotuna *

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