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The AIMS Power 12V 135Ah LiFePO4 Battery With RV-C (LFP12V135A) is a 12.8V lithium iron phosphate battery rated at 135Ah and 1728 watt hours. It adds CAN and RV-C communication, Bluetooth monitoring through the AIMSBATC app, a digital display, a push-button wake-up and a built-in heater, and it handles 100A of continuous charge and discharge current.
It's made for RV house power, boats, commercial vehicles, solar and off-grid systems, and battery backup. The Group 31 case measures 13 x 6.75 x 10.5 inches with terminals, weighs 33.2 lb and comes with dual position mounting feet. Among AIMS's 12V 104Ah, 135Ah and 300Ah batteries, only this model has the digital display, mounting plates and RV-C CAN.
AIMS lists CAN and RV-C communication for this model and includes a CAN communication cable (UL2464, 24AWG). AIMS says the RV-C compatibility and built-in BMS simplify system integration for installers.
The AIMSBATC app for Android and Apple devices shows voltage, current, state of charge, charge or discharge state, cycle count, temperature, remaining and full charge capacity, and average time to empty or full. It connects to one battery at a time.
A round digital display on top of the case lets you check the battery without a phone. AIMS's photos show it reading voltage, state of charge, temperature and current. Holding the power button for 5 seconds puts the battery into sleep mode and turns the screen off, and the battery sleeps on its own after 24 hours with no charge or discharge.
AIMS explains that lithium cells can't accept as much charge current at low temperatures without risking capacity loss. When the battery is below 32°F (0°C) and a charger is connected, the BMS turns on the internal heater and switches it off at 50°F (10°C). The heater uses 10A of the charger's current, not battery power.
If the battery is over-discharged, hold the button for 3 seconds to activate the wake-up feature. You don't need to parallel another battery or use a special charger to get it charging again. AIMS notes one limit: if the battery has dropped below 7V, apply a 12V jumper battery to wake it, then connect a charging source.
The BMS protects against short circuit, over charge, over discharge, low and high temperature, over current, and low and high voltage, and it balances the cells. AIMS says each cell is fused, so a failed cell is isolated to keep the battery operating safely. The ABS+PC case is rated IP65, which AIMS describes as splash and dust proof.
Four mounting plates and twelve M5 bolts come in the box, and the feet fit in two positions for flexible placement. The carry handle is removable, and AIMS says you can install the battery in any orientation because it won't leak or spill.
RV house power. Run your RV's house loads with RV-C communication, Bluetooth monitoring and a heater that lets you charge on cold trips.
Boats. The IP65 case is splash and dust proof. It isn't a starting battery, so use it for house loads, not the engine.
Solar and off-grid systems. Store solar energy at a cabin or remote site with a charge controller or inverter charger that's set up for LiFePO4.
Battery backup. Keep 12V loads or an inverter running during outages.
AIMS designed its 12V LiFePO4 batteries as a lighter alternative to lead acid, AGM or gel batteries, with a longer cycle life and a steady output voltage that delivers close to full power until the battery is nearly empty. Don't mix it with other battery types in the same bank.
A battery without a heater has to wait for warmer conditions before it can charge safely. With the LFP12V135A, the BMS runs the heater from your charger until the cells reach 50°F. AIMS rates charging from 32°F to 113°F and discharging from -4°F to 131°F.
This is an energy storage battery for house and system loads. AIMS says not to use it as a starting battery, and not to connect it to an alternator or non-smart charging system unless you're using a voltage regulator.
Use a charger made for LiFePO4 batteries. For a single 12.8V battery the maximum charge voltage is 14.6V, and AIMS recommends 14.4V. Constant current chargers are recommended; a constant voltage charger may trip from inrush current, so reset it and keep charging. At end-of-charge voltage, hold that voltage until the current drops almost to zero.
AIMS supports parallel and series connections. Before you connect batteries, fully charge each one so their states of charge are within 10%, and use only AIMS batteries of the same age and cycle life. Size copper cables and fuses for your system, crimp (or solder and crimp) the cable ends, and torque the terminals to 7.7 Nm. Ask the Outbound Power team to confirm how many batteries suit your system voltage.
No. AIMS says the heater only runs when a charger is applied at low temperatures, and it uses charger power, not battery power.
Yes. You can install it in any orientation, and it won't leak or spill.
The Bluetooth chip may be asleep to save power. Apply a 10A charge or discharge, then close and reopen the app. Only one phone or tablet can connect to a battery at a time.
LiFePO4 batteries hold a steady voltage, with most of their energy between 12.5V and 13.5V, so the voltage falls quickly once that energy is used. AIMS gives an operating range of 11.2V to 14.7V.
AIMS notes that the terminal bolts are packed in a separate bag inside the box.
The AIMS Power 12V 135Ah LiFePO4 Battery With RV-C puts 1728 watt hours, RV-C communication, Bluetooth monitoring and a built-in heater into one Group 31 case. If you'd like help planning a battery bank or choosing a LiFePO4 charger, the Outbound Power team is happy to help.
AIMS Power 12V 135Ah LiFePO4 Battery With RV-C | Wake-Up Feature | Internal Heater | Bluetooth Monitoring Specifications |
|
|---|---|
| Electrical | |
| Model | LFP12V135A |
| Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 135Ah (at 0.5C, 77°F) |
| Minimum Capacity | 125Ah (at 0.5C, 77°F) |
| Energy | 1728 watt hours |
| Expected Cycle Life | >3500 cycles with 1C charge and discharge, at 77°F, 80% DOD |
| Self-Discharge | <3% per month (stored at 50% SOC) |
| Operating Voltage Range | 11.2V to 14.7V |
| Charge and Discharge | |
| Charge Method | Smart charger, constant current, constant voltage |
| Maximum Charge Voltage | 14.6V |
| Recommended Charge Voltage | 14.4V |
| Charge Voltage Range | 14.2V to 14.6V |
| Continuous Charge Current | 100A |
| Continuous Discharge Current | 100A |
| Peak Discharge Current | 110A for 15 seconds, 300A for 200 milliseconds |
| Discharge Cut-Off Voltage | 11.2V +/- 0.5V |
| High Voltage Cut-Off | 14.8V +/- 0.2V |
| Wake-Up | Push button, hold 3 seconds (below 7V, use a 12V jumper battery) |
| Temperature | |
| Charge Temperature | 32°F to 113°F (built-in heater turns on in low temps) |
| Discharge Temperature | -4°F to 131°F |
| Storage Temperature | -4°F to 131°F |
| Heater | Built-in, triggered with charger |
| Heater On / Off | On below 32°F (0°C), off at 50°F (10°C) |
| Heater Power Source | 10A of the supplied charge current |
| BMS and Monitoring | |
| Protections | Short circuit, over charge, over discharge, low and high temp, over current, low and high voltage |
| Cell Balancing | Yes |
| Cell Fusing | Each cell fused |
| Charge Over Current Protection | 110A |
| Discharge Over Current Protection | 115A |
| Communication | CAN, RV-C, Bluetooth |
| Monitoring App | AIMSBATC (Android and Apple) |
| Display | Digital display (voltage, SOC, temperature, current) |
| Sleep Mode | Yes, optional (power button 5 seconds, or 24 hours idle) |
| Cell Certification | UL1973, RoHS, UN38.3 |
| Physical | |
| Dimensions | 13 x 6.75 x 10.5 in (L x D x H, with terminals) |
| Weight | 33.2 lb |
| Shipping Weight | 35 lb |
| Group Size | 31 |
| Terminal Post Size | M8 (5/16 in) |
| Terminal Torque | 7.7 Nm |
| Battery Case | ABS+PC |
| Ingress Protection | IP65 (splash and dust proof) |
| Mounting | Dual position mounting feet |
| Handle | Removable carry handle |
| Installation Orientation | Any orientation |
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