Odyssey PC925 Battery Series
Odyssey PC925 batteries are sealed lead-acid (SLA) absorbent glass mat (AGM) dual-purpose batteries, designed for marine, automotive, LTV, ATV, and other applications.
Odyssey PC925 batteries are durable, vibration, and mechanical impact-resistant batteries, providing good charging/discharging features in a wide temperature range, being able to produce a large starting current, tolerate a large number of deep discharge cycles, etc.
Being SLA AGM batteries, Odyssey PC925 batteries are low-maintenance batteries that can be mounted in virtually any position.
Published: January 19, 2022.
Odyssey PC925 Battery - Features and Specifications
Odyssey PC925 battery nominal capacity is 28 Ah (when being discharged for 20 hours). Like all lead-acid batteries, when being discharged faster, its capacity drops, and when being discharged for 10 hours, its capacity is 27 Ah - it can deliver 2.7 Amps for 10 hours.
These values are very important when powering smaller loads like LED lights, fish finders, stereo units, etc.
Reserve Capacity (value) is 48 minutes - Odyssey PC925 can deliver 25 Amps for 48 minutes, which is very important when powering medium loads, like smaller trolling motors and similar.
Despite being a dual-purpose battery, the Odyssey PC925 battery can supply 330 CCA (Cold Cranking Amps), 480 MCA (Marine Cranking Amps), 610 HCA (Hot Cranking Amps), and 900 PHCA (5 sec Pulse Hot Cranking Amps).
Due to its low internal resistance (5 mΩ), the short circuit current is ~2400 Amps - such current can make plenty of damage, so avoid short-circuiting this and any other battery.
When being used in deep-cycle applications, Odyssey PC925 can last up to 400 cycles at 80% of DoD (Depth of Discharge).
Thanks to its design, Odyssey PC925 can be stored for longer periods of time without maintenance. When being fully charged first, it can be stored 48 months at 41°F (5°C), 36 months at 59°F (15°C), 24 months at 77°F (25°C), 12 months at 95°F (35°C), and 6 months at 113°F (45°C). When being stored, as soon as the battery voltage drops down to 12 volts (35% of full charge), the battery must be fully charged, preferably with an intelligent AGM battery charger.
Odyssey PC925 battery general dimensions are (L x W x H) 6.64 x 7.05 x 5.04 inches (168.6 x 179 x 128 mm) and it weighs ~26 pounds (~11.8 kg) - weight and dimensions depend slightly on exact battery model.
Odyssey PC925 Discharge Performance Data
Odyssey PC925 discharge performance data is given in the following table.
Note: Values are given for the battery being discharged at 77°F (25°C) down to 10.05 volts.
| Time | Watts (W) | Amps (A) | Capacity (Ah) | Energy (Wh) |
| 2 min | 2237 | 210.9 | 6.3 | 67.1 |
| 5 min | 1412 | 127.2 | 10.6 | 117.7 |
| 10 min | 912 | 80.3 | 13.4 | 152.1 |
| 15 min | 686 | 59.8 | 15.0 | 171.6 |
| 20 min | 554 | 48.0 | 16.0 | 184.8 |
| 30 min | 405 | 34.8 | 17.4 | 202.3 |
| 45 min | 291 | 24.9 | 18.7 | 218.5 |
| 1 hour | 234 | 20.0 | 20.0 | 234.0 |
| 2 hours | 129 | 10.9 | 21.9 | 257.8 |
| 3 hours | 90 | 7.6 | 22.9 | 270.8 |
| 4 hours | 70 | 5.9 | 23.6 | 280.0 |
| 5 hours | 57 | 4.8 | 24.2 | 287.3 |
| 8 hours | 39 | 3.3 | 26.1 | 310.1 |
| 10 hours | 32 | 2.7 | 26.7 | 319.0 |
| 20 hours | 18 | 1.5 | 29.3 | 352.7 |
For example, people having fishing kayaks with small trolling motors (~20 Amps at full throttle) can expect ~1 hour of constant operation using Odyssey PC925 battery.
Also, people having fish finders, GPS, and similar devices drawing 1.5 Amps can expect ~20 hours of constant operation.
Odyssey PC925 Battery Models
Odyssey PC925 battery models are (at the moment of writing this article): Odyssey PC925, Odyssey PC925MJ, Odyssey PC925T, Odyssey PC925MJT, Odyssey PC925L, Odyssey PC925LMJ, and Odyssey PC925LMJT.
Note: MJ abbreviation stands for 'metal jacket', T stands for 'SAE automotive terminals', L stands for 'left post positive'.
The following table lists these models and their main features:
| Model | Photo | Description | Amazon Link |
| Odyssey PC925 |  |
General use battery, featuring no metal jacket. It comes with a female brass terminal with an M6 SS bolt. | Odyssey PC925 |
| Odyssey PC925T |  |
Automotive starting battery with no metal jacket and with SAE terminals. | Odyssey PC925T |
| Odyssey PC925MJ |  |
General use, high-temperature battery with metal jacket. | Odyssey PC925MJ |
| Odyssey PC925MJT |  |
Automotive starting battery with metal jacket, right positive post, and SAE terminals. | Odyssey PC925MJT |
| Odyssey PC925LMJT |  |
Automotive starting battery with metal jacket, left positive post, and SAE terminals. | Odyssey PC925LMJT |
| Odyssey PC925L |  |
General use battery, featuring no metal jacket. It comes with female brass terminals with an M6 SS bolt. Left positive. | Odyssey PC925L |
| Odyssey PC925LMJ |  |
General use, high-temperature battery, featuring metal jacket. Left positive. | Odyssey PC925LMJ |
Note: Amazon affiliate links open in the new windows, feel free to check them for the most up-to-date prices and offers.
For very specific use, be sure to pick the right model. For general use, just pick the model that fits your terminals.
Long Story Short: Odyssey PC950 batteries are not the cheapest and lightest batteries on the market in their class. But, what you pay is what you get - durable and reliable batteries that tolerate both cranking and deep cycling applications and can be fully recharged in 4-6 hours using proper AGM battery chargers.
For more reviews and recommendations, check the Odyssey PC925 Amazon link (link open in the new window).
