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Topic: Batteries - Mix New With Old? (Read 341 times) previous topic - next topic

Batteries - Mix New With Old?

I know it is not recommended to add new lead acid batteries to a series with older ones.
Is that the case for AGM, Gel or lithium?
1993 U225 Build #: 4285
500 Watts Solar
Honda CRV AWD
Former 1981 Foretravel Travco
Retired, Full Time Off Grid Snowbird

Re: Batteries - Mix New With Old?

Reply #1 –
I definitely wouldn't mix new with old. Far better to replace all at once!
David and Carolyn Osborn
1995 U320C SE 40' Build 4726 Feb 1995
FMCA 147762
Motorcade 17186

Re: Batteries - Mix New With Old?

Reply #2 –
I have Battle Born lithium and Battle Born says you can add additional batteries within two years of installing the first ones. That may not apply to other brands.
Dave and Kathy Bennett
2004 U270
Build #6253
1600W Solar
700 AH Battle Born Lithium
2015 Jeep Wrangler

No matter what happens, remember you always get the trip out of it.

Re: Batteries - Mix New With Old?

Reply #3 –
Quote from: dbennett9 –
I have Battle Born lithium and Battle Born says you can add additional batteries within two years of installing the first ones. That may not apply to other brands.
Thanks Dave. I'm thinking of switching to lithium this year and was thinking I might have to do it in phases but after price shopping today I was pleasantly surprised to see 100 AH 12v lithium batteries as low as $287 each.

Ampere Time 12.8V 100Ah LiFePO4 Deep Cycle Lithium Battery for RV Motorhomes...
1993 U225 Build #: 4285
500 Watts Solar
Honda CRV AWD
Former 1981 Foretravel Travco
Retired, Full Time Off Grid Snowbird

Re: Batteries - Mix New With Old?

Reply #4 –
That's getting close to AGM prices.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Batteries - Mix New With Old?

Reply #5 –
Quote from: craneman –
That's getting close to AGM prices.
I think it's better considering you can use 100% of the AH.
1993 U225 Build #: 4285
500 Watts Solar
Honda CRV AWD
Former 1981 Foretravel Travco
Retired, Full Time Off Grid Snowbird