Addmotor Motan M-B2 Dual-Battery Fat Electric Bike
Addmotor's product pageThe Addmotor Motan M-B2 Dual-Battery Fat Electric Bike is an electric bike with a 48 V, a 17.5 Ah pack and a 10.5 Ah pack, a 750 W motor, a stated range of 100–120 miles at PAS 1, a weight of 73lbs and a load capacity of 300lbs.
Last updated: 11 September 2026
Motor and performance
- Motor position
- Rear Hub
- Motor make
- Bafang
- Motor
- 750 W
- Claimed range
- 100–120 miles at PAS 1
- Payload capacity
- 300lbs
- Controller
- Addmotor 25A Controller
- Throttle
- Variable Speed Control - 1/2 Twist Throttle with ON/OFF Switch
- Range, as the description states it
- you can ride a longer range of 80-100 miles on a single charge
“Bafang 48V*750W Rear Hub Brushless Motor - Special Design For Snow Beach All Terrain”
Source: addmotor.com/products/m-b2
“Bafang 48V*750W Rear Hub Brushless Motor - Special Design For Snow Beach All Terrain”
Source: addmotor.com/products/m-b2
“Bafang 48V*750W Rear Hub Brushless Motor - Special Design For Snow Beach All Terrain”
Source: addmotor.com/products/m-b2
“Charging Time 4-6 Hours And Rated For 800 Charge Cycles Range 100-120 Miles With PAS 1”
Source: addmotor.com/products/m-b2
“Payload Capacity 300lbs”
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Disputed
“With the large-capacity battery, you can ride a longer range of 80-100 miles on a single charge. This makes the bike unbeatable when it comes to range”
Source: addmotor.com/products/m-b2
Battery and charging
- How the two packs work together
- The system automatically switches to the 10.5Ah battery in 0.5s that set on the upward tube when it detects a charge difference of five percent
- Charging two packs
- Both batteries can be charged on the bike at the same time or charged separately on an external charger
- Battery
- 48 V, a 17.5 Ah pack and a 10.5 Ah pack
- Battery system
- Sealed removable pack
- Cell supplier
- Panasonic
- Charging time, stated for the machine
- 4–6 hours
- Charger
- US Standard DC Smart Charger
- Which pack discharges first
- priority use the downward oblique tube battery, which capacity is 17.5Ah
- Battery charging time, as the description states it
- 11 hours for both, or 7 hours for the 17.5Ah and 4 hours for the 10.5Ah
Source: addmotor.com/products/m-b2
“Both batteries can be charged on the bike at the same time or charged separately on an external charger. It comes with one charger that can be used to charge the two batteries, whether mounted or removed”
Source: addmotor.com/products/m-b2
“48V*17.5Ah+10.5Ah Lithium Panasonic Batteries”
Source: addmotor.com/products/m-b2
“Batteries Cell In A Sealed Removable Pack--Easy to Disassemble”
Source: addmotor.com/products/m-b2
“Lithium Panasonic Batteries Cell In A Sealed Removable”
Source: addmotor.com/products/m-b2
“Charging Time 4-6 Hours And Rated For 800 Charge Cycles Range 100-120 Miles With PAS 1”
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
“While riding, priority use the downward oblique tube battery, which capacity is 17.5Ah”
Source: addmotor.com/products/m-b2
Disputed
“Starting from a completely discharged state, the charging time for both batteries is 11 hours, or 7 hours for the 17.5Ah battery, 4 hours for the 10.5Ah battery”
Source: addmotor.com/products/m-b2
Battery care and safety
- Rated charge cycles
- 800 cycles
“Charging Time 4-6 Hours And Rated For 800 Charge Cycles Range 100-120 Miles With PAS 1”
Source: addmotor.com/products/m-b2
Brakes and safety
- Brake rotors
- Tektro MD-M300 180mm / 180mm
- Wiring
- Water-Resistant Connectors And Wiring Harness
- Brake levers
- EL555-RT / EL550-RS mechanical — the maker's name is printed "ektro"
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
“ektro Mechanical EL555-RT / EL550-RS”
Source: addmotor.com/products/m-b2
Frame and components
- Frame
- 6061 Aluminium-Alloy Frame
- Front fork
- ADDSHOX 100 of Travel, Adjustment, and Lockout
- Tires
- Kenda 26" X 4.0" 30 TPI Fat Tires
- Chain
- KMC Rust Resistant Chain
- Freewheel
- Pro Freewheel 7 Speeds
- Pedals
- Aluminum Black Pedal
- Handlebar
- Black Aluminum Handlebar
- Saddle
- Addmotor Comfortable Seat
- Seat post
- Quick Release 30cm
- Display
- Addmotor 5 Inch LCD Display
- Chain puller
- Shimano 7 Speed / ACERA M360
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Source: addmotor.com/products/m-b2
Size and fit
- Rider height
- 5'4"-6'4"
- Weight
- 73lbs
- Gross weight
- 93lbs
“height range of 5'4"-6'4" and weigh 300lbs”
Source: addmotor.com/products/m-b2
“73lbs/93lbs”
Source: addmotor.com/products/m-b2
“73lbs/93lbs”
Source: addmotor.com/products/m-b2
Compatibility
- No replacement pack we hold names this model
- Addmotor name other models on their packs, not this one
“17.5Ah (840Wh) Lithium-Ion battery pack fits Addmotor e-bike models of M-140, M-150, M-330, and 2022 versions of M-350 & M-340”
Source: addmotor.com/products/m-b2
Certification claims
- “First of its kind” battery claim
- Addmotor's first dual battery e-bike in 2019
“It is Addmotor's first dual battery e-bike in 2019. The dual battery technology makes the M-B2”
Source: addmotor.com/products/m-b2