Trojan Battery Company 31XCS Battery Specs & Replacement

Battery and charging

Reserve minutes, at a stated current: 185 minutes at 25 amps — the only capacity-like figure published
Capacity, which the maker prints as not applicable: Trojan print N/A — no capacity at any rate, and no watt-hours

Battery care and safety

Storing it through a cold winter: Below freezing, keep it above 60% charge

United States — CPSC

We did not match this product to any recall in the data we hold from CPSC, last checked September 19, 2026. Check CPSC’s own search: cpsc.gov/Recalls

United States — NHTSA & Coast Guard

We did not match this product to any recall in the data we hold from NHTSA or the US Coast Guard, which we hold records from but do not yet check on a schedule. Check NHTSA’s own search: nhtsa.gov/recalls

European Union

We did not match this product to any recall in the data we hold from the European Union, last checked September 19, 2026. Check the European Union’s own search: ec.europa.eu/safety-gate-alerts/screen/search

United Kingdom

We did not match this product to any recall in the data we hold from the United Kingdom, last checked September 19, 2026. Check the United Kingdom’s own search: gov.uk/product-safety-alerts-reports-recalls

Australia

We did not match this product to any recall in the data we hold from Australia, last checked September 14, 2026. Check Australia’s own search: productsafety.gov.au/recalls

Canada

We did not match this product to any recall in the data we hold from Canada, last checked September 19, 2026. Check Canada’s own search: recalls-rappels.canada.ca/en/search

France

We did not match this product to any recall in the data we hold from France, last checked September 19, 2026. Check France’s own search: rappel.conso.gouv.fr

None of these is a statement that the product is safe or unrecalled — only that our searches found nothing. Each regulator’s own search is linked above.

Devices documented to run on this

The figures below line up. Neither manufacturer states that this pack runs this device — that is our reading of what each of them published separately, not a claim by either of them or a test by us. Even where every stated figure agrees, these can still decide it:

A motor’s published draw is usually a peak, not the load it holds — the two numbers are not the same kind of quantity
A maker’s amp-hour minimum and their reserve-capacity minimum can give different answers about the same battery
Conditions attached to the chemistry, such as a speed limit for running on lithium
Whether the pack may be wired in series at all, where the device needs 24 or 36 volts
The charger, which both makers put conditions on and neither supplies
Case size, hold-down and terminal type — fitting the space is not being secured in it

Worth confirming with the manufacturer or a dealer before buying.

Minn Kota Terrova 55 lb (54" shaft, wireless remote)Figures compared
One of these.
Only on reserve capacity, which is the measure Minn Kota name where no amp-hour rating is published — check yours before buying.
Trojan publish no amp-hour capacity for the 31XCS at all — its panel reads "Capacity Amp-Hours N/A" where every other battery in the line prints four figures. Minn Kota cover exactly that case: where no amp-hour rating is available they ask for a deep cycle battery with at least 180 minutes of reserve capacity. Trojan give 185 minutes at 25 amps, clearing it by 5 minutes. Minn Kota state this motor draws up to 50 amps, and Trojan publish nothing at a current that high, so the reserve figure answers their requirement without describing what the battery does under this motor's load. Minn Kota's battery-guidance table recommends AGM or lithium at 100 amp-hours for a 55 lb motor, alongside the manual sentence quoted above. Neither company has named the other and nobody has tested the pairing.
Minn Kota Terrova 80 lb (60" shaft, wireless remote)Figures compared
Two of these, Two 12-volt batteries wired in series.
Only on reserve capacity, which is the measure Minn Kota name where no amp-hour rating is published, and with two of these wired in series as their manual requires — check yours before buying.
Trojan publish no amp-hour capacity for the 31XCS at all — its panel reads "Capacity Amp-Hours N/A" where every other battery in the line prints four figures. Minn Kota cover exactly that case: where no amp-hour rating is available they ask for a deep cycle battery with at least 180 minutes of reserve capacity. Trojan give 185 minutes at 25 amps, clearing it by 5 minutes. Minn Kota state this motor draws up to 56 amps, and Trojan publish nothing at a current that high, so the reserve figure answers their requirement without describing what the battery does under this motor's load. Minn Kota's manual for this motor is explicit that two 12-volt batteries wired in series are required. Their amp-hour figure is asked of the battery rather than of the string, so it is compared against a single one. Their battery-guidance table recommends lithium at 100 to 125 amp-hours for an 80 lb motor, which is a different chemistry from this one — the manual and the table are both Minn Kota's and they do not agree. Neither company has named the other and nobody has tested the pairing.
Minn Kota Terrova 112 lb (60" shaft, CHIRP sonar, wireless remote)Figures compared
Three of these, Three 12-volt batteries wired in series.
Only on reserve capacity, which is the measure Minn Kota name where no amp-hour rating is published, and with three of these wired in series as their manual requires — check yours before buying.
Trojan publish no amp-hour capacity for the 31XCS at all — its panel reads "Capacity Amp-Hours N/A" where every other battery in the line prints four figures. Minn Kota cover exactly that case: where no amp-hour rating is available they ask for a deep cycle battery with at least 180 minutes of reserve capacity. Trojan give 185 minutes at 25 amps, clearing it by 5 minutes. Minn Kota state this motor draws up to 52 amps, and Trojan publish nothing at a current that high, so the reserve figure answers their requirement without describing what the battery does under this motor's load. Minn Kota's manual for this motor is explicit that three 12-volt batteries wired in series are required. Their amp-hour figure is asked of the battery rather than of the string, so it is compared against a single one. Their battery-guidance table recommends lithium at 125 to 150 amp-hours for a 112 lb motor, which is a different chemistry from this one — the manual and the table are both Minn Kota's and they do not agree. Neither company has named the other and nobody has tested the pairing.

Compatible platforms

The motors this pack is documented to run are listed above. No boat, rig or other platform in this catalogue is listed as carrying it — that is a separate question from what it will power, and nothing is listed until a source answers it.

Sources

Trojan 31XCSMANUFACTURER MODEL PAGE
Source: trojanbattery.com/products/31xcs-12v-flooded-lead-acid-battery
Retrieved September 16, 2026