What’s Included In The 36V GATOR MAX KIT From BigBattery?
The 36V GATOR MAX KIT by BigBattery includes a 36V 100Ah LiFePO4 battery, smart charger, pre-installed BMS, wiring harness, mounting brackets, and user manual. Designed for golf carts, RVs, and solar storage, it offers 3.6kWh capacity with 4000+ cycles. Ruggedized casing resists vibration/moisture. Charge to 43.2V (3.6V/cell) using the included CC-CV charger for optimal lifespan. Built-in 100A discharge supports motors up to 3600W.
What core components come with the GATOR MAX KIT?
The kit contains a 36V LiFePO4 battery, 10A smart charger, and critical accessories like marine-grade cables. The battery features a built-in 100A BMS for cell balancing and overload protection. Mounting brackets simplify installation in vehicles or solar setups.
Beyond the main components, the GATOR MAX includes 6AWG copper battery cables with corrosion-resistant terminals—essential for high-current applications. The LiFePO4 cells are arranged in 12S configuration (12 cells in series) to achieve 36V nominal voltage. Pro Tip: Always torque terminal connections to 8–10 Nm—under-tightening causes resistance heating, while over-tightening risks stripping threads. For example, the included charger uses a three-stage CC-CV-CA (constant absorption) algorithm, reaching full charge in 10 hours. Why does cable quality matter? Poor conductors can lose up to 5% efficiency in high-power systems like electric tractors.
What are the charging specifications for the GATOR MAX?
The included charger operates at 43.2V max (3.6V/cell) with 10A output. Full recharge takes ~10 hours from 20% SOC. CC-CV charging ensures minimal heat generation and balanced cells.
Practically speaking, the charger’s 10A rate is optimized for overnight replenishment without stressing the battery. Charging parameters are preset for LiFePO4 chemistry: bulk charge at 10A until 43.2V, then voltage hold until current drops to 2A. Transitional phases prevent voltage overshoot, which can trigger BMS disconnects. But what if you need faster charging? Third-party 20A chargers work but require BMS compatibility checks. Here’s a key comparison:
| Charger Type | Charge Time | Cell Stress |
|---|---|---|
| 10A (Included) | 10 Hours | Low |
| 20A (Aftermarket) | 5 Hours | Moderate |
Always verify third-party units have adjustable voltage limits—43.2V ±0.5V is critical for safety.
Is the GATOR MAX compatible with all 36V systems?
Not universally—controllers must support LiFePO4 voltage curves (43.2V max vs. 45V for lead-acid). Motor wattage should not exceed 3600W continuous (100A × 36V).
Lead-acid systems often use voltage cutoffs incompatible with lithium’s flatter discharge curve. For instance, a golf cart designed for 36V lead-acid might shut off prematurely when the GATOR MAX still has 20% capacity. Pro Tip: Reprogram controller LVC (low-voltage cutoff) to 30V (2.5V/cell) instead of lead-acid’s typical 31.8V. When considering compatibility, check inverter specs too—modified sine wave units can cause BMS communication errors.
Battery Expert Insight
FAQs
No—lead-acid chargers peak at 44V+, exceeding LiFePO4’s 43.2V limit. Overvoltage triggers BMS protection, halting charging until voltage resets.
Does the kit support series connections for higher voltage?
Yes, but only under professional supervision. Two 36V kits in series create 72V—ensure all BMS units communicate to prevent imbalance. Discharge current remains capped at 100A combined.