BLF-12045W (9 hours at 10 W PEP, 7 hours at 20 W PEP) · Power
A battery, charger, controller, solar panel, filter, or station-power component.
Why operators make room for it
BLF-12045W (9 hours at 10 W PEP, 7 hours at 20 W PEP): match stored energy to the radio and operating plan
BLF-12045W gives a portable or backup radio station a defined 12-volt LiFePO4 power source instead of forcing the operator to build the power system around an unknown battery. This LiFePO4 battery is intended for customers who want quiet, portable DC energy for field operation, emergency readiness, or a station that must continue working away from commercial power. The published operating-time example (9 hours at 10 W PEP, 7 hours at 20 W PEP) is a planning reference tied to that stated transmit/receive duty cycle—not a universal runtime promise.
The built-in protection circuit manages cell balancing and helps protect against overcurrent, excessive discharge, overvoltage, and short circuits. Pair it only with the documented LiFePO4 charging equipment and connector arrangement. Those protections improve usability, but they do not replace correct fusing, cable sizing, connector polarity, ventilation, and load planning.
The real buying decision is operating time versus pack size and weight. A QRP station, a 100-watt HF transceiver, accessories, receive time, transmit duty cycle, mode, and output power all draw energy differently. Honest runtime scenarios, a clear connector path, and the radio-current limits make that tradeoff easier to judge than capacity alone.
Choose BLF-12045W when its documented voltage, capacity, current capability, connector, charger, and expected duty cycle match the station you intend to power. That turns a battery specification into something useful: a predictable amount of radio time that can be planned, carried, and recharged.
Quick product reference
Key Specifications
- Product type
- Power
- Primary role
- A battery, charger, controller, solar panel, filter, or station-power component.
- Voltage
- 12V
- Capacity
- 4.5 Ah
- Case Type
- PVC Pack
- Charge Connector
- DC Barrel Plug
- Discharge Connector
- Anderson Powerpole
- Maximum Continuous Discharge Current
- 9A (Make sure your load consumes less than 9A)
- Maximum Peak Pulse Current
- 18A (2 sec.)
- Max Power Delivered To Load At 12V
- 108 Watts (12v x 9A = 108 Watts)
- Dimensions
- (L x W x H) 2.9 in. x 2.3 in. x 2.8 in. (76 mm x 57 mm x 71 mm)
- Weight
- 1.0 lbs. (0.5 kg.)
- Input Voltage
- 110VAC/220 VAC
- Output Voltage
- 14.6VDC
Operator decision support
Plan the complete setup
See what this product is best suited for, what the documented setup needs, and the boundaries to confirm before deployment.
- Best for
Away from the grid, every amp-hour, connector, charging source, and transmit duty cycle becomes part of the station design.
- What else you need
Protect every circuit with the specified polarity, fuse, cable size, ventilation, and charging limits.
What an operator can do
- Match battery chemistry, voltage, current capacity, connectors, charger, and controller to the station load.
- Protect every circuit with the specified polarity, fuse, cable size, ventilation, and charging limits.
- Estimate operating time from the actual transmit duty cycle rather than a maximum nameplate figure alone.
Complete product details
The Bioenno Power Lithium Iron Phosphate (LiFePO4) Battery (Model BLF-12045W) is a state of the art 12V 4.5Ah battery. Only marginally larger than the BLF-1203W, our smallest model, this unit is ideal for portable electronics applications where your device has low power consumption and requires a battery which like your device is small, light weight and extremely compact but extended run-time is required. The battery has an integrated PCM (protection circuit module) which provides complete internal cell balancing, complete integrated protection along with integrated charge circuitry. Additionally, like all Bioenno Power batteries with multiple connectors, you can discharge or charge through either connector! This unit has available a 110VAC/220 VAC AC-to-DC charger, that provides 2A with a DC Plug.
Includes built-in PCM (protection circuit module) which provides internal cell balancing and management, protection from overcurrent, undervoltage (overdischarge), overvoltage and short circuiting, and has integrated charging circuitry
Please note you can also use an adapter to convert the output connector from the battery to various outputs including a DC plug.
Please note that this battery should be charged using a LiFePO4 compatible charger, and not a charger for SLA batteries.
Battery Specifications
- Voltage: 12V
- Capacity: 4.5 Ah
- Case Type: PVC Pack
- Charge Connector: DC Barrel Plug
- Discharge Connector: Anderson Powerpole
- Maximum Continuous Discharge Current: 9A (Make sure your load consumes less than 9A)
- Maximum Peak Pulse Current: 18A (2 sec.)
- Max Power Delivered to Load at 12V: 108 Watts (12v x 9A = 108 Watts)
- Dimensions:(L x W x H) 2.9 in. x 2.3 in. x 2.8 in. (76 mm x 57 mm x 71 mm)
- Weight: 1.0 lbs. (0.5 kg.)
Compatible AC-to-DC Charger Specifications
- Input Voltage: 110VAC/220 VAC
- Output Voltage: 14.6VDC
- Current: 2A
- Connector: DC Plug
IMPORTANT
In practice if you are not using the battery for more than 3 months, simply top off the battery using the BPC- wall charger every 3 months. You do not need to leave the BPC- wall charger attached to the battery all the time. Simply top off using the BPC- wall charger, the LED light on the charger turning from red to green. The 50% rule is only needed if you will not be using the battery for more than 1 year. In that case, you will need to discharge the battery to about 12.8 VDC and then disconnect the wall charger from the battery and store.
