If you’re tight on space but big on power, the Enerdrive B-TEC 300Ah Slimline is the top-shelf choice for serious touring rigs, canopies, caravans and marine. The slim metal case (only 176.5 mm deep) lets you mount 300Ah where standard cases won’t fit, while the integrated Bluetooth app keeps you across volts, amps, SOC/SOH, temps, cell balance and event logs in real time. The latest Slimline design moves the reset button off the case to a remote-mount switch for easier access and improved water resistance.
Key features
• 300Ah LiFePO₄ deep-cycle capacity (12.8 V nominal)
• Slim metal enclosure, IP52 water-resistant; all connections at one end for tidy installs
• Bluetooth monitoring (iOS/Android): SOC/SOH, volts, amps, temps, individual cell voltages, alarms
• Internal BMS: over/under-voltage, over/under-temp, over-current, short-circuit protection
• >2,500 cycles at 80% DoD (under controlled conditions)
• Remote-mount reset button design (not on the case itself)
• Max inverter size: 3000 W (do not exceed BMS limits)
• Parallel up to 4 x 300Ah Slimline batteries (stay within single-battery current limits)
• 5-year warranty
What’s in the box
• 1 × Enerdrive B-TEC 300Ah Slimline Lithium Battery (EPL-300BTM-12V)
• User documentation (incl. reset-switch wiring guide)
Install notes (must-know)
• Internal installations only; not for engine bays or wet/exposed locations
• Avoid mounting in high-heat areas; follow Enerdrive fitment guide and standards
• Charge with a lithium profile charger/DC-DC
Technical specs (headline)
• Nominal voltage: 12.8 V • Capacity: 300Ah
• Dimensions (L × H × D): 630 × 498 × 176.5 mm
• Weight: NW: 43kg / GW: 48 kg
• Charge: 14.2–14.6 V (max 150 A for 30 min; recommend 60–120 A)
• Discharge: 11.0–14.6 V (max 250 A for 30 min; 450 A pulse 1 s)
• Enclosure: powder-coated zinc-plate metal, IP52
