Bolt Energy USA 73.6 Volt 105AH (33-72105LB)
SKU 33-72105LB
Bolt Energy USAThe Bolt Energy USA 73.6 Volt 105AH (33-72105LB) is a battery pack with a nominal voltage of 73.6V, a nominal capacity of 105Ah, a continuous discharge of 250 A and a peak of 520 A±15.6A (30S).
Last updated: 27 October 2026
Motor and performance
- Estimated range, 2-passenger cart
- 62 - 70 miles
- Estimated range, 4-passenger cart
- 55 - 61 miles
- Estimated range, 4- or 6-passenger cart
- 55 - 58 miles
“Estimated Range 62 - 70 Miles”
Source: buggiesunlimited.com/golfcart/instructions/universal/GTW/Bolt_Application_Chart.pdf
“Estimated Range 55 - 61 Miles”
Source: buggiesunlimited.com/golfcart/instructions/universal/GTW/Bolt_Application_Chart.pdf
“Estimated Range 55 - 58 Miles”
Source: buggiesunlimited.com/golfcart/instructions/universal/GTW/Bolt_Application_Chart.pdf
Battery and charging
- Maximum charge current
- 105Ah
- Permitted charger
- Only Bolt's own charger
- Round-trip efficiency
- 99%
- Communications bus
- CANBUS
- Rated charge cycles
- 2500 cycles at 1C, or 4000 at 0.2C
- Case material
- Steel
- Cell arrangement
- 1P23S
- Nominal capacity
- 105Ah
- Nominal voltage
- 73.6V
- Cell chemistry
- Prismatic LiFePO4
- Continuous discharge
- 250A
- Peak discharge
- 520A±15.6A (30S)
- Recommended charge voltage
- 57.5V - 84V
- Recommended charge current
- 5-52A
- Discharge cut-off
- 57.5V
- Charge cut-off
- 84V
- Low-voltage disconnect
- 69.0V
- Runtime at a 20 A draw
- 315 min
- Maximum in parallel
- Two, at most
- Stated energy
- Voltage:73.6V | Capacity: 105Ah | Energy:7.728KWh
Unconfirmed
“Maximum charging Current 105Ah”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“ONLY use the charger provided by Bolt Energy USA when charging. Check the voltage of Battery and relevant connectors before using.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Efficiency 99%”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“BMS languages CANBUS”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
Unconfirmed
“13 Cycle Life 1C@DOD100% ≥2500 cycles 0.2C@DOD100% ≥4000 cycles”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Case Material Steel”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Cell Configuration 1P23S”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Nominal Capacity 105Ah”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Nominal Voltage 73.6V”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Cell Type - Chemistry Prismatic LiFePO4”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Max Continuous Current 250A”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Peak Discharge Current 520A±15.6A (30S)”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Recom. Charge Voltage 57.5V - 84V”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Recommended Charge Current 5-52A”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“BMS Discharge Voltage Cut-Off 57.5V”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“BMS Charge Voltage Cut-Off 84V”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Recom. Low Voltage disconnect 69.0V”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Capacity @ 20A 315 min”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Maximum 2 packs of batteries connect in parallel. 3) Be sure the voltage difference range of the two batteries is within 0.1V.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Voltage:73.6V | Capacity: 105Ah | Energy:7.728KWh”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
Battery care and safety
- Self-discharge rate
1-3% per month
2026Data_Sheet_33-72105LB.pdf · retrieved 16 September 2026
“Self Discharge 1-3% per month”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
At least 3% a month, as this manual prints it
105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf · retrieved 16 September 2026
“14 Self-discharge Rate ≥3%/Month”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
- Where the BMS cuts out on current
- 260A±7.8A (50S) 520A±15.6A (30S)
- Where the BMS cuts out on charge current
- 375A(1S)
- Voltage it reconnects at after a low cut-out
- 60.0V
- Voltage charging resumes at
- <84V
- When the heater comes on
- A heating system that runs only while the pack is charging
- Storage temperature
- Between 34 °F and 110 °F, and never warmed artificially
- What the battery management system guards against
- Short circuit, temperature, over-current and pack voltage
- Charge temperature range
- 14 < T ≤ 131 °F
- Discharge temperature range
- -4F <T≤ 140F
- Shipping classification
- UN 3480 | Class 9
- Charge level in transit or on delivery
- Half charged in transit
The maker’s own documents give different figures
“BMS Discharge Current cut-off 260A±7.8A (50S) 520A±15.6A (30S)”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Input Current Cut-off 375A(1S)”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Reconnect Voltage 60.0V”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Reconnect Voltage <84V”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
Unconfirmed
“The battery heating system is active only during charging events. Charging is defined as: • External charging via a charger • Regenerative braking (Regen) energy recovery”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
Unconfirmed
“Storage Climate: A. High-Temperature Storage: Avoid storing the battery in temperatures above 110°F (43°C), as excessive heat may reduce performance and lifespan. B. Low-Temperature Storage: We recommend not storing the battery in temperatures below 34°F (1°C) for extendedperiods. Never use an external heat source, such as a portable heater, to warm the battery, as this can cause damage or unsafe conditions.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“SAFETY SPECIFICATIONS ALL VISIBLE ON THE BOLT ENERGY BATTERY BLUETOOTH APP Short Circuit Yes Low / High Temperature Discharging Yes Low / High Temperature Charging Yes Over-Current Discharging Yes Over-Current Charging Yes Pack Under / Over Voltage Yes”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“11 Charge Method Charge 14 < T ≤ 131° F Discharge -4 <T≤ 140° F”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Charge Temperature Range 14F<T≤131F”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Discharge Temperature Range -4F <T≤ 140F”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Shipping Classification UN 3480 | Class 9”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“During transportation the Battery should be at 50% SOC to prevent short circuits if there is an accident reducing the risk of fire. • Battery should be kept at 32°F - 113°F indoors where it's dry, clean, and well-ventilated.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
Size and fit
- Dimensions on the engineering drawing
- Body 20.08 × 10.75 × 10.16 in; 22.05 long with feet, 10.75 tall with handle
- Overall dimensions
22.05’’ x 10.75" x 10.75"
2026Data_Sheet_33-72105LB.pdf · retrieved 16 September 2026
“Dimensions (L x W x H) 22.05’’ x 10.75" x 10.75"”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
20.08 × 10.75 × 10.39 in
105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf · retrieved 16 September 2026
“15 Battery Dimension L = 20.08 IN W = 10.75 IN H = 10.39 IN”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
- Stated weight
137 lbs
2026Data_Sheet_33-72105LB.pdf · retrieved 16 September 2026
“Weight 137 lbs”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
141 lb
105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf · retrieved 16 September 2026
“9 Total Weight 141 LBS 10 Impedance at 1000Hz. ≤50mΩ”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
- Terminal type
- M8
- Terminal material
- Brass
- Terminal torque
- 132 in-lb, and no more
“12.01" 305mm 21.33" 542mm 10.75" with handle 273mm 10.16" 258mm 20.08" 510mm 22.05" with feet 560mm 5.26" 133.5mm 10.75" 273mm”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
The maker’s own documents give different figures
The maker’s own documents give different figures
“Terminal Type M8”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Terminal Material Brass”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Install your positive and negative battery and charger cables (red to positive, black to negative). Using a torque wrench, tighten to 132 in-lbs (11ft-lbs).”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
Compatibility
- Carts the maker names
- A specification sheet; no cart named
- Aftermarket controller caveat
- Bolt star every row for this pack: it may need an aftermarket controller
“Voltage:73.6V | Capacity: 105Ah | Energy:7.728KWh”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“*May require aftermarket controller”
Source: buggiesunlimited.com/golfcart/instructions/universal/GTW/Bolt_Application_Chart.pdf
Frame and components
- Enclosure rating
- IP66
“Enclosure Protection IP66”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
Identity
- Model code
- 33-72105LB
“DATA SHEET 73.6V105AH Model:33-72105LB”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
Conditions and exclusions
- What the warranty does not cover
- usage 3,000 charge cycles or above
“This Limited Warranty does not cover a Product that has reached its normal end of life due to usage 3,000 charge cycles or above which may occur prior to the Warranty Period. A battery can deliver only a fixed amount of Energy over its life which will occur over different periods of time depending on the application. For example, cycling the battery more than 1 time daily, will cause the normal end of life to occur before the end of the Warranty Period.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
Other findings
- Bluetooth
- Bluetooth receiver
- Auto sleep after inactivity
- Sleeps after 12 hours; hold a button 2 seconds to wake
- Bluetooth monitoring
- Cell voltages, cell temperature, amp draw, time left, cycles, firmware
- Bluetooth range
- 32 feet
- Capacity retained at temperature
- At least 70% of capacity at −4 °F, 90% at freezing
- Case features
- Stainless handles, pressure valve, drip-proof edge, mounting feet
- Charger extension cord limit
- No cord over 15 ft, and nothing lighter than 12 AWG
- Charge storage retention
- At least 97% left after a month in storage
- Internal impedance
- 50 mΩ or less, at 50% charge
- Manufacturer denies series connection
- Never in series — it voids the warranty
- Models this document covers
- Shared with 33-72105LH
- Professional kit contents
- The standard kit plus a voltage reducer, solenoid and 2 AWG cables
- Standard kit contents
- Meter, charger, hardwire adapter, extension cord, brackets, Bluetooth
- Storage state of charge
- 50–80% charged, charger off, battery switched off
“Bluetooth Bluetooth receiver”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“Your battery features an auto-sleep function that activates after 12 hours of inactivity. To wake it, simply use one of the two on/off buttons mentioned above.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“BLUETOOTH FEATURES Voltage (overall and individual cell voltages) Remote technical support Remaining Charge/Discharge Time Firmware update Current Cell Temperature Current Amp Draw Lifetime Power Cycles”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
“The Bolt USA app supports Apple and Android systems, supports English and dual language switching. When Bluetooth® signal is strong, it can be connected within 32 feet. In the APP store install “Bolt USA”. You will be able to read the voltage, SOC, battery history record, update firmware, send data to email or cloud server for fast after sales service.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“5 Discharge Temperature Characteristic at 0.2C -4°F (6h) ≥70% Discharge capacity at specified temperature/capacity at 77°F 32°F (6h) ≥90% 77°F (4h) ≥100% 131°F (4h) ≥97%”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Stainless Steel Handles -Post 5/16 Switch (Power On/Off Button) PV (Pressure Valve) CAN (Communication Area Network) BT (Bluetooth ® ) Mounting Feet +Post 5/16 Drip Proof Edge”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Do not use an extension cord over 15ft long with a rating below 12AWG. Longer cords with lighter gauge wire will cause heat resistance, increasing the risk of an electrical fire.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Charging Storage Ability in Normal Temperature Rest Capacity ≥ Standard Capacity *97% After standard charging, store at 77°F ± 41°F for 1 month, and then discharge capacity @0.2C current to the end of discharge voltage, then measure the capacity of cell.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Internal Impedance ≤50mΩ At 50% SOC, 1kHz AC internal resistance test instrument.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Never run Batteries in series. If you do, your warranty will be VOID.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“Models: 33-72105LB, 33-72105LH 105 Ah - 72 Volt”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“SOC (State-of-Charge Meter) 36-51V Bolt 30 AMP High Output Reducer 72V Bolt 50AMP High Output Reducer Waterproof Charger w/ Charger Interlock Pigtail Deco Plate for AC Hardwire AC Hardwire Onboard Charge Adapter (2) 40" 2AWG Cables 12 AWG 15 Foot Extension Cord 36-51V-400A Solenoid with Diode Lead Battery Removal Strap PROFESSIONAL KITS INCLUDE:”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
“SOC (State-of-Charge Meter) Waterproof Charger w/ Charger Interlock Pigtail Deco Plate for AC Hardwire AC Hardwire Onboard Charge Adapter 12 AWG 15 Foot Extension Cord • (2) 5/16 Battery Post with Lock Washers • (3) - 3/8, (3) 5/16 Battery Ring Terminal • (10) 10" Tie Straps • Stickers Bracket & Hardware Bluetooth Receiver ® STANDARD KITS INCLUDE:”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
Unconfirmed
“If your vehicle will remain idle for a week or more, charge the battery to 50-80%, disconnect the charger, and turn off the battery by holding the on/off button (located on the battery) or the black button on the SOC display for 3 seconds.”
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
Certification claims
- Datasheet certification claim
- UL1642 | IEC62619 (Cells) UN38.3 |MSDS (Battery)
“Certifications UL1642 | IEC62619 (Cells) UN38.3 |MSDS (Battery)”
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
Sources
- Bolt Energy USA — 105 Ah 72V 33 72105 LB 33 72105 LH Instructions R1Manufacturer document
Bolt Energy USA
Source: boltenergyusa.com/wp-content/uploads/2026/09/105Ah-72V-33-72105LB-33-72105LH-Instructions_R1.pdf
Retrieved September 16, 2026
- Bolt Energy USA — 2026 Data Sheet 33 72105 LBManufacturer document
Bolt Energy USA
Source: boltenergyusa.com/wp-content/uploads/2026/07/2026Data_Sheet_33-72105LB.pdf
Retrieved September 16, 2026
- Archived document
Source: buggiesunlimited.com/golfcart/instructions/universal/GTW/Bolt_Application_Chart.pdf
Retrieved September 23, 2026