Most lithium starter packs use a BMS firmware tuned for off-grid leisure use. Drop one into a vehicle and the protection thresholds trip during normal alternator operation - and your dashboard lights up with charging-system faults.
Tighter thresholds cause false trips during normal alternator operation. Ours don't.
The same firmware behaviours as our leisure range, tuned for vehicle duty. Three things you shouldn't have to think about, and won't.
The BMS pre-charges the discharge MOSFETs before any cranking event, so the inrush of starter current doesn't shock the FETs. Headroom up to 300A for three seconds - more than any 12V engine demands, leaving the BMS comfortably inside its protection envelope.
After ten minutes of no current and cells below 3V, the BMS drops into hibernation. Self-discharge becomes negligible at 0.16 mA. Wakes on charge or app reconnect - but note the advisory below: if the pack does hibernate, the output is off, which means no central locking either.
Pair with the TITAN app for live cell voltages, current in amps and watts, SOC as a percentage and in Ah, estimated time to full or empty, protection trip history, and live balancing activity. Third-party Bluetooth apps can read but not write.
Hand-built by our partner factory to a TITAN spec sheet. End-pack QC in Cheltenham - every battery passes through our final inspection and check process before it ships.
From the same EVE and CATL automotive cell lines as our leisure range. Every cell graded and matched before assembly.
Series/parallel arrangement inside the case. Three parallel strings give the headroom for high discharge and balanced thermal distribution.
Active balancing moves energy between cells at a 30mV delta. Passive bleeds handle the smaller 15-30mV differences. Same firmware as the leisure range, where it's run for over a decade.
Sub-10 milliohm pack resistance. Low enough that cranking pulses don't sag voltage below the BMS's discharge cut-off, which is what kills cheaper lithium starter integrations.
Discharge from -20°C - it'll crank a cold engine. Charge from 0°C up. FET thermal cut-off at 90°C if anything ever runs hot.
ABS casing. SAE side post plus M8 stud on each terminal - fits the OE harness and accepts direct M8 cable lugs. Terminals torqued to 10-15 N·m at final QC.
Everything that ships with the battery, in writing. Spec sheet for the engineers, install & care manual for everyone else.
Full electrical, BMS, thermal & chemical-safety data — the same numbers our engineers test to.
Install, charge, care & warranty terms — covers every TITAN battery in the current range.
