4x4, caravan, camper and boat
How long will the fridge run tonight?
CellBoss reads the lithium battery in your bakkie, caravan, camper trailer or boat over Bluetooth, and tells you straight: the charge, the power going in or out, and how long until it’s empty or full. No signal needed, so it works deep in the Kgalagadi too.
CellBoss is in testing on Google Play now. Want to try it sooner with your own battery? Email us.
What you see at the campsite
- The charge in percent and the amp-hours left.
- Time to empty at the current load: the fridge, the lights, the CPAP.
- Time to full while the solar panel or DC-DC charger is putting power in.
- Every cell, so a weak cell doesn’t surprise you halfway through a trip.
- Temperatures, because LiFePO4 mustn’t be charged below 0 °C. Most boards block it; CellBoss Pro gives you a heads-up while it’s open.
Built for being off the grid
- No signal needed. CellBoss talks to the battery over Bluetooth and never uses the internet.
- Read-only. Nothing gets changed by a wrong tap in the dark.
- Several batteries PRO: the bakkie’s canopy battery and the caravan’s, each a tap apart, and batteries in parallel added up.
- A home-screen widget PRO with the charge, the power and the cell difference at a glance.
Which batteries?
Lithium batteries with a JK, JBD or Daly board that has Bluetooth. Many drop-in 12 V batteries that come with their own phone app have a JBD board inside. CellBoss reads the lithium battery’s board. It doesn’t read a lead-acid starter battery.
Selling the caravan?
The battery report PRO puts the battery’s state, its cells and its last 30 days on one PDF page. It shows a buyer the battery is healthy, and it helps with a warranty claim.
Bluetooth range shrinks inside steel canopies, battery boxes and under seats. If CellBoss can’t see the battery, move a bit closer.
Questions
Does CellBoss work with a dual battery system?
It reads the lithium auxiliary battery’s board if it’s a JK, JBD or Daly with Bluetooth. It doesn’t read the vehicle’s starter battery.
Do I need cell signal or Wi-Fi?
No. Only Bluetooth, and your phone near the battery.
Can I see the solar charging?
Yes: the power going into the battery and the time to full, as the battery’s board measures them. CellBoss doesn’t read the solar controller itself.
Can I keep an eye on two batteries?
Yes, with Pro. Pair them both and switch with a tap, or add batteries in parallel together in the bank view.
Take the guesswork out of camping power
The charge, the time left and every cell, with no signal.
CellBoss is in testing on Google Play now. Want to try it sooner with your own battery? Email us.