LiTime 12V 100Ah Group 31 vs Renogy Core Mini 12V 100Ah DuoHeat

The Renogy Core Mini 12V 100Ah DuoHeat and the LiTime 12V 100Ah Group 31 are evenly matched, rated 3.7 and 3.7. The Renogy Core Mini 12V 100Ah DuoHeat leads on cold weather. The LiTime 12V 100Ah Group 31 costs $50.60 less ($302.39 vs $352.99).

Higher rated

Renogy Core Mini 12V 100Ah DuoHeat

#5 in 100 Ah class3.7Full review

For winter campers and ice anglers who need a compact 100Ah battery that can charge below freezing.

Amazon $352.99

$352.99

LiTime 12V 100Ah Group 31

#10 in 100 Ah class3.7Full review

A good-value Group 31 drop-in for boats and RVs used in mild climates. Independent testing shows it delivers more than its rated 100Ah.

Amazon $302.39

$302.39

Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Which should you buy?

Choose the Renogy Core Mini 12V 100Ah DuoHeat for cold weather (self-heating, so it charges below freezing vs no low-temperature charge protection).

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every 100 ah class 12V lithium battery; a clear win is highlighted. How we rank explains each one.

Factor weight	Renogy Core Mini 12V 100Ah DuoHeat	LiTime 12V 100Ah Group 31
Overall rating	3.7/5	3.7/5
Value 35%	71 $0.28 per rated Wh	77 $0.24 per rated Wh
Tested capacity 15%	50 not yet independently tested (neutral score used)	100 106% of rated capacity measured (1 test)
Output 15%	50 100 A continuous (about 1,280 W at 12.8 V)	50 100 A continuous (about 1,280 W at 12.8 V)
Warranty 15%	50 5-year warranty	50 5-year warranty
Cycle life 10%	67 5,000 cycles at 80% depth, maker rating	50 4,000 cycles at 100% depth, maker rating
Cold weather 10%	100 self-heating, so it charges below freezing	0 no low-temperature charge protection

Independent capacity tests

Renogy Core Mini 12V 100Ah DuoHeat

No independent test published yet.