Battery Finder: Search by Part Number
Search by part number
Match your old battery by part number or group size
Type the model or BCI group printed on the label (Interstate, Trojan, Optima, Odyssey and more). We show the exact battery or same-size replacements, plus lithium upgrades.
Results for “Group 27”
Group 27 size 12V · Group 27
Compatible replacements (9)
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Compatible size Interstate 27M-AGM 12V Group 27M AGM Dual Purpose Marine Battery – 850 CCA
Same 12V Group 27 size
12V · Group 27 · ~85 Ah · AGM · Cranking, Dual purpose · SKU 27M-AGM
$414.95In stock -
Compatible size Interstate 27M-AGM-A 12V Group 27M AGM Dual Purpose Marine Battery – 750 CCA
Same 12V Group 27 size
12V · Group 27 · ~90 Ah · AGM · Cranking, Dual purpose · SKU 27M-AGM-A
$279.95In stock -
Compatible size Interstate 27M-EFB 12V Group 27M EFB Deep Cycle Marine Battery – 675 CCA
Same 12V Group 27 size
12V · Group 27 · ~90 Ah · flooded · Trolling motor, Dual purpose, House bank · SKU 27M-EFB
$219.95In stock -
Compatible size Interstate 27M-XHD 12V Group 27M Starting Marine Battery – 800 CCA
Same 12V Group 27 size
12V · Group 27 · flooded · Cranking · SKU 27M-XHD
$179.95In stock -
Compatible size Interstate M-27HDC 12V Group 27M Starting Marine Battery – 675 CCA
Same 12V Group 27 size
12V · Group 27 · flooded · Cranking · SKU M-27HDC
$159.95In stock -
Compatible size Interstate SRM-27 12V Group 27M Deep Cycle Marine Battery – 600 CCA
Same 12V Group 27 size
12V · Group 27 · ~88 Ah · flooded · Trolling motor, Dual purpose, House bank · SKU SRM-27
$169.95In stock -
Compatible size Trojan 27-AES 12V AES AGM Deep Cycle Battery, Group 27
Same 12V Group 27 size
12V · Group 27 · ~89 Ah · AGM · Trolling motor, House bank · SKU 27-AES
$369.86In stock -
Compatible size Trojan 27TMX 12V Flooded Deep Cycle Battery, Group 27
Same 12V Group 27 size
12V · Group 27 · ~105 Ah · flooded · Trolling motor, House bank · SKU 27TMX
$247.04In stock -
Compatible size Trojan SCS200 12V Flooded Deep Cycle Battery, Group 27
Same 12V Group 27 size
12V · Group 27 · ~115 Ah · flooded · Trolling motor, House bank · SKU SCS200
$263.95In stock
Lithium upgrades (2)
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Lithium upgrade Battle Born 100Ah 12V LiFePO4 Deep Cycle Batteries
Same Group 27 size, lighter and longer-lasting
12V · Group 27/31 · ~100 Ah · lithium · Trolling motor, House bank · SKU BB10012-SERIES
Price range: $799.00 through $1,049.00In stock -
Lithium upgrade Interstate LI27M12V100 12V 100Ah Group 27M Lithium Marine Battery
Same Group 27 size, lighter and longer-lasting
12V · Group 27 · ~100 Ah · lithium · Trolling motor, House bank · SKU LI27M12V100
$804.95In stock
Not sure it fits? Text us a photo of your battery label and we'll confirm before you order.
Where to find your battery’s part number
Look at the top or side label of your old battery. Marine batteries usually show the brand and model (for example Interstate SRM-27, Trojan 27TMX or Optima D34M) and the BCI group size, such as 24, 27, 31, 4D or 8D. An “M” after the group (27M) is the marine version of the same case size. Dashes, spaces and brand names don’t matter when you search.
How we match
- Exact match: we carry that same battery model.
- Compatible size: a battery we carry with the same voltage and BCI group (case size). Check the use too: cranking (starting), deep cycle (trolling motor, house bank) or dual purpose.
- Lithium upgrade: a 12V lithium battery in the same group size, lighter and longer-lasting. Use a lithium-compatible charger.
Common marine battery sizes
- Group 24: smaller boats, trolling motors and starting.
- Group 27: the most common trolling motor and dual-purpose size.
- Group 31: higher-capacity trolling, house and starting batteries.
- 4D and 8D: large house banks and big inboard engines.
- 6V GC2 and L16: house banks wired in pairs (Trojan T-105, L16).
Can’t find yours? Text a photo of the label to (954) 743-0000 or contact us and we’ll match it for you.