Trojan Battery Company 24TMX
SKU 24TMX
Trojan Battery Companytrojanbattery.com/products/24tmx-12v-flooded-battery
The Trojan Battery Company 24TMX is a battery pack with a nominal voltage of 12V and a nominal capacity of 85 Ah at the 20-hour rate, one of four Trojan publish.
Last updated: 1 November 2026
Battery and charging
- Battery chemistry
- Lead Acid
- Reserve minutes, at a stated current
- 140 minutes at 25 amps, with 75 amps published too
- Battery weight
- 47 (21)
- Voltage
- 12V
- Nominal capacity
- 85 Ah at the 20-hour rate, one of four Trojan publish
- Capacity, at the 20-hour rate
- 85
- Capacity, at the 5-hour rate
- 70
- Capacity, at the 10-hour rate
- 78
- Reserve capacity
- 140
- Stated energy
- 1.13 kWh at the 100-hour rate
“24TMX 12V Flooded Lead Acid Battery”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“BAttery Quick Facts Capacity Minutes @25 Amps / 140 @75 Amps / 36 Capacity Amp-Hours 5-Hr Rate / 70 Ah 10-Hr Rate / 78 Ah 20-Hr Rate / 85 Ah 100-Hr Rate / 94 Ah Energy (kWh) 1.13 Dimensions inches (mm) Length / 10.92 (277) Width / 6.62 (168) Height / 9.25 (235) Weight lbs. (kg) 47 (21) Operating Temperature -4°F to 122°F (-20°C to +50°C)”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“Weight lbs. (kg) 47 (21) Operating Temperature -4°F to 122°F (-20°C to +50°C)”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“24TMX 12V Flooded Lead Acid Battery”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“BAttery Quick Facts Capacity Minutes @25 Amps / 140 @75 Amps / 36 Capacity Amp-Hours 5-Hr Rate / 70 Ah 10-Hr Rate / 78 Ah 20-Hr Rate / 85 Ah 100-Hr Rate / 94 Ah Energy (kWh) 1.13 Dimensions inches (mm) Length / 10.92 (277) Width / 6.62 (168) Height / 9.25 (235) Weight lbs. (kg) 47 (21) Operating Temperature -4°F to 122°F (-20°C to +50°C)”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“Capacity Amp-Hours 5-Hr Rate / 70 Ah 10-Hr Rate / 78 Ah 20-Hr Rate / 85 Ah 100-Hr Rate / 94 Ah”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“Capacity Amp-Hours 5-Hr Rate / 70 Ah 10-Hr Rate / 78 Ah 20-Hr Rate / 85 Ah 100-Hr Rate / 94 Ah”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“Capacity Amp-Hours 5-Hr Rate / 70 Ah 10-Hr Rate / 78 Ah 20-Hr Rate / 85 Ah 100-Hr Rate / 94 Ah”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“Capacity Minutes @25 Amps / 140 @75 Amps / 36”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“BAttery Quick Facts Capacity Minutes @25 Amps / 140 @75 Amps / 36 Capacity Amp-Hours 5-Hr Rate / 70 Ah 10-Hr Rate / 78 Ah 20-Hr Rate / 85 Ah 100-Hr Rate / 94 Ah Energy (kWh) 1.13 Dimensions inches (mm) Length / 10.92 (277) Width / 6.62 (168) Height / 9.25 (235) Weight lbs. (kg) 47 (21) Operating Temperature -4°F to 122°F (-20°C to +50°C)”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
Battery care and safety
- Operating temperature range
- -4°F to 122°F (-20°C to +50°C)
“Operating Temperature -4°F to 122°F (-20°C to +50°C)”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
Size and fit
- Length
- 277 mm
- Width
- 168 mm
- Height
- 235 mm
- Terminals
- Universal Terminal UT
- Stated weight
- 47 lbs, as the quick facts panel states it
“Dimensions inches (mm) Length / 10.92 (277) Width / 6.62 (168) Height / 9.25 (235)”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“Dimensions inches (mm) Length / 10.92 (277) Width / 6.62 (168) Height / 9.25 (235)”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“Dimensions inches (mm) Length / 10.92 (277) Width / 6.62 (168) Height / 9.25 (235)”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“TERMINAL TYPES Universal Terminal UT Automotive Post Terminal AP Wingnut Terminal WNT Small L-Terminal SLT”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
“BAttery Quick Facts Capacity Minutes @25 Amps / 140 @75 Amps / 36 Capacity Amp-Hours 5-Hr Rate / 70 Ah 10-Hr Rate / 78 Ah 20-Hr Rate / 85 Ah 100-Hr Rate / 94 Ah Energy (kWh) 1.13 Dimensions inches (mm) Length / 10.92 (277) Width / 6.62 (168) Height / 9.25 (235) Weight lbs. (kg) 47 (21) Operating Temperature -4°F to 122°F (-20°C to +50°C)”
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
Devices whose figures this pack does not meet
Neither maker names the other. These devices publish a draw this pack’s own maker does not rate it to deliver continuously. That is a comparison of two documents and not a manufacturer’s refusal — check both against your own equipment before deciding anything.
Minn Kota's manual for this motor asks for at least a 105 amp-hour rating and says the motor will run on any lead-acid, deep-cycle marine 12-volt battery.
Minn Kota do not say which discharge rate their figure applies to, and Trojan publish four figures for this battery: 70 at the 5-hour rate, 78 at 10, 85 at 20 and 94 at 100.
The 20-hour rate is the conventional marine rating and the one compared.
Minn Kota's website battery guide asks for 110 amp-hours rather than the manual's 105, and they have not reconciled the two; at 85 this battery falls short of both.
Trojan publish no figure at that current, so how long it would last there is not something either company states.
Neither company has named the other and nobody has tested the pairing.
Trojan rate the 24TMX at 85 amp-hours at the 20-hour rate each, 20 amp-hours short of it.
Their amp-hour figure is asked of the battery rather than of the string, so it is compared against a single one.
- Minn Kota Terrova 55 lb (54" shaft, wireless remote)Figures compared — they do not meetView device: Minn Kota Terrova 55 lb (54" shaft, wireless remote) →
Trojan rate the 24TMX at 85 amp-hours at the 20-hour rate, 20 amp-hours short of it. Trojan give reserve minutes at two currents for this battery — 140 minutes at 25 amps and 36 at 75 — and the 50 amps Minn Kota state as this motor's maximum draw falls between them. 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.
- Minn Kota Terrova 80 lb (60" shaft, wireless remote)Figures compared — they do not meetView device: Minn Kota Terrova 80 lb (60" shaft, wireless remote) →
Trojan give reserve minutes at two currents for this battery — 140 minutes at 25 amps and 36 at 75 — and the 56 amps Minn Kota state as this motor's maximum draw falls between them. Minn Kota's manual for this motor is explicit that two 12-volt batteries wired in series are required. 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.
- Minn Kota Terrova 112 lb (60" shaft, CHIRP sonar, wireless remote)Figures compared — they do not meetView device: Minn Kota Terrova 112 lb (60" shaft, CHIRP sonar, wireless remote) →
Trojan give reserve minutes at two currents for this battery — 140 minutes at 25 amps and 36 at 75 — and the 52 amps Minn Kota state as this motor's maximum draw falls between them. Minn Kota's manual for this motor is explicit that three 12-volt batteries wired in series are required. 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.
Do not charge with
The manufacturer states these chargers must not be used with this battery:
- PD4500LI Series Power Control CenterStated incompatibleView charger: PD4500LI Series Power Control Center →
Progressive Dynamics state it outright about this converter: "The 4500LI series converter/chargers are designed to recharge lithium iron phosphate (LiFePO4) batteries only. DO NOT USE TO RECHARGE LEAD/ACID BATTERIES!" This pack is Flooded lead-acid, which is a lead-acid chemistry, so their sentence covers it. They say nothing about packs of other chemistries and nothing here extends it past what it covers.
Source: forestriverinc.com/files/component-manuals/Electrical/Progressive Dynamics - Power Converter Model PD4500 Series Operation Guide.pdf
Sources
- Trojan 24TMXManufacturer model page
Source: trojanbattery.com/products/24tmx-12v-flooded-battery
Retrieved September 16, 2026
- Progressive Dynamics PD4500 Series Operation GuideManufacturer document
Progressive Dynamics
Source: forestriverinc.com/files/component-manuals/Electrical/Progressive Dynamics - Power Converter Model PD4500 Series Operation Guide.pdf
Retrieved September 20, 2026