Pro-Guide Batteries
Pro-Guide 31M235-DP 12V 235Ah Dual Purpose Lithium Battery
$1,699.99
Ground shipping is $9.95 per order, added at checkout. Ships to the lower 48 states.
Lithium battery: ships ground only, lower 48 states.
Final sale: no returns except for damage in transit.
- 12.8 V, 235 Ah LiFePO4 (3,008 Wh) in a Group 31 Tall case
- Starts the engine and runs your electronics: 1,000 CCA lead-acid equivalent
- Bluetooth, built-in heater, NMEA 2000, IP67
- Charge with a LiFePO4 (lithium) charger profile, using the maker’s settings.
- Boats with a Group 31 Tall space that start and run electronics off one battery
- Long days on the water with a lot of screens running
- NMEA 2000 boats that want battery data on the network
- A standard-height Group 31 box: it stands 10.83 in tall
- A 24 V or 36 V trolling motor bank: this is one 12 V battery
- $9.95 ground shipping, lower 48
- Final sale (damage covered)
- Secure checkout
- Specs from the maker
- Questions? 831-477-9600
Description
The big brother of the 31M180-DP: same start-and-run job, more hours on the electronics. It needs a Group 31 Tall space (10.83 in high) and stores 3,008 Wh (our math: 12.8 V x 235 Ah).
Pro-Guide rates it at 1,000 CCA lead-acid equivalent, 800 A for 8 seconds. Built-in heater, Bluetooth, a state of charge gauge and NMEA 2000.
Charge it to 14.4 V. Pro-Guide lists 200 A charge acceptance and a 14.8 V max for alternator charging. It comes with a 3-year free replacement warranty.
Good fit if: Your boat has a Group 31 Tall space (10.83 in high) and one battery has to crank the outboard and run electronics all day.
Not the pick if: Your box only fits a standard-height Group 31: get the 31M180-DP.
Specs from the maker
| Voltage | 12.8 V nominal |
|---|---|
| Capacity | 235 Ah (3,008 Wh, our math) |
| Chemistry | LiFePO4 |
| Cranking | 1,000 CCA lead-acid equivalent; 800 A for 8 s, 1,000 A for 5 s |
| Continuous discharge | 200 A |
| Charge | 14.4 V cut-off; 10-47 A standard, 117.5 A max continuous |
| Alternator | 200 A charge acceptance, 14.8 V max |
| Discharge cut-off | 10 V |
| Cycle life | More than 3,000 at 100% DoD, more than 6,000 at 80% DoD |
| Charging temperature | -4 to 131 °F (-20 to 55 °C) |
| Protection | IP67 |
| Terminals | 3 internal thread (M8) |
| Features | Bluetooth monitoring, built-in heater, NMEA 2000 compatible, state of charge gauge, BMS reset, removable handle |
| Size | 13.07 x 6.93 x 10.83 in (L x W x H), Group 31 Tall |
| Weight | 52.91 lb |
| Warranty | 3-year free replacement, 10-year pro-rata (Pro-Guide) |
Maker’s page: proguidebatteries.com
Specs source: the maker's datasheet.
Additional information
| Weight | 52.91 lbs |
|---|
