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BC300
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Bmpro Bc300 + Commlink for Lead Acid and Lithium Batteries
Item as described. Fast shipping even over Chrismas period.
We bought this shunt so we could hook it up to our battery management system. As we installed a diesel heater and an external MPPT solar controller, we needed to make sure our battery management system knew about the external draw on the battery. It worked a treat
Item delivered on time and as expected
BMPRO BC300 + Commlink for Lead Acid and Lithium Batteries
If you have a BMpro system like to j35 etc your really need one of these. I thought I had and issue with charging and without a bc300 your blind to try and find the issue. I have brought a number of items from Everything Caravan really easy to deal with and you get the product fast.
Purchased a bmpro 35 ll HA along with a bmpro BC300 + commlink to upgrade my caravan to lithium. The Service I received from everything caravans was first class, fast delivery, very good price and quality products. Found very easy to install and all works and plays well together. Very happy with the new set up.
Fast delivery, best price found for product, easy install and setup
Good so far . Easy to install..
Great product from BMPRO installed straight off the Batteries works very well contact with BMPRO technical guys for information and tips first class. Absolute super price and very fast delivery from Everything Caravans thanks Mike and Helen I will be back for future purchases.
Having mounted it in a caravan, I found it necessary to move it to within a couple of meters of the battery (connected to the Trek monitor), rather than the BP35 located just 4 meters away.
Very quick delivery, awesome service.
the best and easiest solution when wanting to add power hungry items to battery. With a bmpro j35 battery monitoring system works seamlessly and DYI install
Excellent device and service
Very happy with the service. Good instructions. All working well.
The shunt and commslink does the job as designed. The commslink reports back to the J35 the amps in/out from the shunt (in my case an inverter and solar). Pretty pricey for a shunt though. If you don't care about the J35 integration, then you can rig up any suitable shunt to a standalone V/A/AH/W/WH meter for under $100.
Excellent product very happy with the service thank you
Good service—-thank you
Works really well!! no problems with charging now!!
There was a simple error made with my order and Mike went over and above to rectify it. Extremely happy with the service so I’ll be shopping here again.
Easy to install. Now I can monitor the state of the lithium batteries.
Haven’t installed it yet but im happy so far.
BMPRO BC300 + Commlink for Lead Acid and Lithium Batteries
Haven’t been free camping yet but have tested it in the yard and it shows what I want and expected it to .👍
BMPRO BC300 + Commlink for Lead Acid and Lithium Batteries
The BMPRO BC300 External Shunt and Commlink provide accurate battery capacity monitoring for lead acid and lithium battery systems. Suitable for setups with Diesel Heaters that require direct wiring to the battery instead of connection via a battery manager.
Features
- Compatibility: Works with 12V Lead Acid and LiFePO4 lithium batteries
- Voltage range: 8 to 16 volts
- Capacity range: 7 to 800 amp hours (Ah)
- Current range: ±300 amps peak (240A continuous)
- Wireless communication: Bluetooth and CAN bus
- Supports high current loads and external charge sources connected directly to the battery
- Integrates with BatteryPlus35 and J35 systems
- Temperature monitoring for battery protection (temperature data collected but not displayed)
- Real-time data: Time Remaining and State of Charge displayed on Trek, JControl, and JHub interfaces
- Simple DIY installation with easy pairing
Battery Data Monitored
- Voltage
- Charging and discharging current
- Energy usage in amp hours (Ah)
- Battery temperature (not shown on interfaces)
Note: A BC300 is required for any load or separate charge source connected directly to the battery.
Common Applications for Direct-to-Battery Connections
- Inverters (all sizes)
- Diesel or gas heaters
- Air compressors
- Portable solar panels
- DC/DC chargers (all brands)
- Additional fridges
- Wi-Fi and satellite TV systems
- High amp 12V plugs (Anderson plugs: 50A, 80A, 100A, 150A)
- Additional lighting
- Electric steps and slideouts
- Electric water pumps
- Electric jacks and winches

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$439.00
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from 10272 reviewsEverything was good. The part fit perfectly.
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Great price and service, prompt delivery
I was after a hard to find inner window frame size. These guys had them and got them to me very quickly as I was on a tight schedule. Apart from great service, they are genuinely nice people to deal with. Definitely can recommend Everything Caravans.
Item working well and fixed issue!
Delivery was spot on thank you.
Definitely recommend everything caravans
Item as described with prompt delivery
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From ordering to receive was very quick and the follow up was excellent and quality. Thank You
- 5 stars: 21 (88%)
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Bmpro Bc300 + Commlink for Lead Acid and Lithium Batteries
Item as described. Fast shipping even over Chrismas period.
We bought this shunt so we could hook it up to our battery management system. As we installed a diesel heater and an external MPPT solar controller, we needed to make sure our battery management system knew about the external draw on the battery. It worked a treat
Item delivered on time and as expected
BMPRO BC300 + Commlink for Lead Acid and Lithium Batteries
If you have a BMpro system like to j35 etc your really need one of these. I thought I had and issue with charging and without a bc300 your blind to try and find the issue. I have brought a number of items from Everything Caravan really easy to deal with and you get the product fast.
Purchased a bmpro 35 ll HA along with a bmpro BC300 + commlink to upgrade my caravan to lithium. The Service I received from everything caravans was first class, fast delivery, very good price and quality products. Found very easy to install and all works and plays well together. Very happy with the new set up.
Fast delivery, best price found for product, easy install and setup
Good so far . Easy to install..
Great product from BMPRO installed straight off the Batteries works very well contact with BMPRO technical guys for information and tips first class. Absolute super price and very fast delivery from Everything Caravans thanks Mike and Helen I will be back for future purchases.
Having mounted it in a caravan, I found it necessary to move it to within a couple of meters of the battery (connected to the Trek monitor), rather than the BP35 located just 4 meters away.
Very quick delivery, awesome service.
the best and easiest solution when wanting to add power hungry items to battery. With a bmpro j35 battery monitoring system works seamlessly and DYI install
Excellent device and service
Very happy with the service. Good instructions. All working well.
The shunt and commslink does the job as designed. The commslink reports back to the J35 the amps in/out from the shunt (in my case an inverter and solar). Pretty pricey for a shunt though. If you don't care about the J35 integration, then you can rig up any suitable shunt to a standalone V/A/AH/W/WH meter for under $100.
Excellent product very happy with the service thank you
Good service—-thank you
Works really well!! no problems with charging now!!
There was a simple error made with my order and Mike went over and above to rectify it. Extremely happy with the service so I’ll be shopping here again.
Easy to install. Now I can monitor the state of the lithium batteries.
Haven’t installed it yet but im happy so far.
BMPRO BC300 + Commlink for Lead Acid and Lithium Batteries
Haven’t been free camping yet but have tested it in the yard and it shows what I want and expected it to .👍