The Addmotor 20Ah Xuanwu Battery is a battery pack with a nominal voltage of 48V, a capacity of 20Ah and 960Wh of energy.
Last updated: 8 September 2026
What we found
- Documented to fit 3 models: Addmotor Landtan Fat Tire eTrike, Addmotor Freetan M-368X Full-Suspension Semi-Recumbent eTrike, Addmotor Freetri E-361 Semi-Recumbent Folding eTrike, from the manufacturer's own documentation.
- Published as 48V · 20Ah · 960Wh.
- 25 specifications are published for it, each with the source it was read from.
- No matching recall was found in the records this catalogue holds from 8 regulators.
Assembled from the evidence on this page. Every figure and count below is shown with the source it was read from.
Battery and charging
- How the cell surfaces are prepared
- Lithium cells Plasma Surface Adhesion Boost
- Integrated tail light
- A red lens and a separate circuit board carrying LEDs, shown disassembled beside the pack
- Voltage
- 48V
- Rated capacity
- 20Ah
- Battery energy
- 960Wh
- Cell supplier
- Samsung lithium-ion cells
- Charging port on the machine
- 5‑pin charging port
- Case alloy thermal conductivity
- About 200 W/(m·K)
- Case insulation layer
- Anodised
- Smallest gap the potting fills
- Fills gaps down to 1–2 mm
- How the pack is potted
- Robot-injected after plasma cleaning
- How the pack comes out
- Pulls out, no tools
- Case material
- aluminum‑manganese alloy (3003/3005 series)
- Cell potting
- two‑component silicone gel
- Mounting position
- rear-placed on E-Trike frame below the seat
- Capacity retained over its life
- 70–80% after 1,000 cycles
- Housing construction
- mid‑section aluminum alloy housing
- Whether this name means one pack or a design
- The XuanWu battery in the Citytan M-315 (48V 13.5Ah)
Source: addmotor.com/u_file/2607/photo/xuanwu-battery-2_1784012247.jpg
Source: addmotor.com/u_file/2606/photo/citytan-m315-battery_1782369363.jpg
“This 48V*20Ah (960Wh) Samsung battery”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“This 48V*20Ah (960Wh) Samsung battery pack”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“(960Wh) Samsung battery pack fits Addmotor”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“dissipation, shock resistance, and safety with Samsung lithium-ion cells, full‑potting thermal gel, and an integrated aluminum case.”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“(with a 5‑pin charging port) and two keys.”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“Aluminum alloy has a thermal conductivity of about 200 W/(m·K) —nearly a thousand times that of ordinary plastic.”
Source: addmotor.com/blog/decoding-xuanwu-batteries-the-potting-aluminum-case-tech
“The fully potted gel itself offers extremely high electrical insulation strength (dielectric strength exceeding 10 kV/mm), and together with the anodized insulating layer on the aluminum case, it forms a double insulation barrier that effectively eliminates leakage and short-circuit risks.”
Source: addmotor.com/blog/decoding-xuanwu-batteries-the-potting-aluminum-case-tech
“During production, a two-component addition-cure silicone gel is precisely injected in a liquid state, seamlessly penetrating into gaps as small as 1–2 mm between the cells.”
Source: addmotor.com/blog/decoding-xuanwu-batteries-the-potting-aluminum-case-tech
“Rejecting low-end manual dispensing, a high-precision 6-axis robot with a dynamic mixing system precisely injects the two-component resin according to a 3D digital model of the case interior.”
Source: addmotor.com/blog/decoding-xuanwu-batteries-the-potting-aluminum-case-tech
“The XuanWu battery features a highly user-friendly pull-out design. No special or complex tools are needed—just pull it out and easily bring it home or to the garage for convenient storage or charging.”
Source: addmotor.com/blog/decoding-xuanwu-batteries-the-potting-aluminum-case-tech
“This battery replaces fragile plastics with a high‑thermal‑conductivity aluminum‑manganese alloy (3003/3005 series).”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“A two‑component silicone gel is injected in liquid form, penetrating 1–2mm gaps between cells—displacing air and building a thermal superhighway.”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“Samsung UL-Certified Battery rear-placed on E-Trike frame below the seat for balanced handling”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“With BMS thermal regulation, this multi‑layer design maintains ideal temperatures and retains 70%–80% capacity after 1,000 cycles.”
Source: addmotor.com/blog/freetri-e361-next-gen-semi-recumbent-folding-etrike
“The Xuanwu model features a mid‑section aluminum alloy housing that increases the heat‑dissipation surface area and helps prevent battery thermal runaway.”
Source: addmotor.com/blog/addmotor-freetan-m368x-full-suspension-recumbent-etrike-story
“The XuanWu battery in the Citytan M-315 (48V 13.5Ah) replaces fragile plastic housings with an aluminum-manganese alloy enclosure and full thermal-gel potting.”
Source: addmotor.com/blog/thermal-gel-aluminum-casing-battery-etrike-safety
Battery care and safety
- Heat sink design
- Giant 3D Heat Sink
- Internal hotspots, compared by the maker
- Internal Hotspots -10°C (Average)
- Flame rating of the potting compound
- UL94 V-0
“Giant 3D Heat Sink Impact (Bumpy Ready) Anti-Deform”
Source: addmotor.com/u_file/2606/photo/xuanwu-battery-blog_1782356529.jpg
Unconfirmed
“Internal Hotspots -10°C (Average) vs. Plastic Pack”
Source: addmotor.com/u_file/2606/photo/xuanwu-battery-blog_1782356529.jpg
“The potting compound meets the UL94 V-0 highest flame-retardant rating. In the rare event of a single cell anomaly, the gel releases water of crystallization upon heating, rapidly absorbing heat and cutting off oxygen”
Source: addmotor.com/blog/thermal-gel-aluminum-casing-battery-etrike-safety
Compatibility
- Fitment, as the manufacturer states it
M-368X, Landtan Fat Tire eTrike
20ah-xuanwu-battery-521 · retrieved by us 29 August 2026
“Addmotor e-bike models of M-368X，Landtan Fat Tire eTrike”
Source: addmotor.com/products/20ah-xuanwu-battery-521
Freetan M‑368X, Citytan M‑315, and Landtan Fat Tire eTrike
20ah-xuanwu-battery-521 · retrieved by us 29 August 2026
“This battery is compatible with Freetan M‑368X, Citytan M‑315, and Landtan Fat Tire eTrike. Not available for sale to Hawaii”
Source: addmotor.com/products/20ah-xuanwu-battery-521
Freetan M-368X Citytan M-315 Landtan Fat Tire eTrike
Further product photograph from the same page · retrieved by us 29 August 2026
Source: addmotor.com/u_file/2607/photo/xuanwu-battery-5_1784012247.jpg
- Capacity stated for the Citytan M-315
- 13.5Ah
The maker’s own documents give different figures
Unconfirmed
“(13.5Ah), and Landtan Fat Tire eTrike.”
Source: addmotor.com/products/20ah-xuanwu-battery-521
Identity
- The manufacturer's own model name
- Xuanwu
- Name on the manufacturer's product page
- 20Ah Samsung UL-Certified Battery
“Use a full potting process (applicable to both Kirin and Xuanwu models), the pack is filled with thermally conductive silicone to deliver enhanced heat dissipation, safety, and waterproofing.”
Source: addmotor.com/blog/addmotor-freetan-m368x-full-suspension-recumbent-etrike-story
Source: addmotor.com/products/20ah-xuanwu-battery-521
Buying and owning it
- In the box
- Battery and two keys
- Sales restriction
- Not available for sale to Hawaii, Alaska, or Puerto Rico
“Inside the box: the 48V battery (with a 5‑pin charging port) and two keys. The keys are placed in the sponge next to the battery—be sure to remove them before discarding the packaging.”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“Not available for sale to Hawaii, Alaska, or Puerto Rico.”
Source: addmotor.com/products/20ah-xuanwu-battery-521
Other findings
- Cooling improvement claimed from the manufacturer's own testing
- 8–12°C lower hotspots, per Addmotor's own testing
- Life improvement claimed from the manufacturer's own testing
- About 20% longer life, per Addmotor's own testing
Unconfirmed
“In our testing, under extreme conditions such as continuous high-current fast charging and heavy-load hill climbing, internal hotspot temperatures are reduced by 8–12°C.”
Source: addmotor.com/blog/decoding-xuanwu-batteries-the-potting-aluminum-case-tech
Unconfirmed
“By keeping the core temperature consistently lower, this advanced thermal system extends the battery's usable life by roughly 20%.”
Source: addmotor.com/blog/decoding-xuanwu-batteries-the-potting-aluminum-case-tech
Certification claims
- Certification claimed by the manufacturer
- UL 2271 certified
- Flame retardancy claimed
- UL94 V‑0
- Dielectric strength claimed
- exceeding 10 kV/mm
Unconfirmed
“It is UL 2271 certified for light electric vehicle safety.”
Source: addmotor.com/products/20ah-xuanwu-battery-521
Unconfirmed
“The gel delivers dielectric strength exceeding 10 kV/mm, forms double insulation with the anodized case, and meets UL94 V‑0 flame retardancy.”
Source: addmotor.com/products/20ah-xuanwu-battery-521
“The gel delivers dielectric strength exceeding 10 kV/mm, forms double insulation with the anodized case, and meets UL94 V‑0 flame retardancy.”
Source: addmotor.com/products/20ah-xuanwu-battery-521
Compatible bikes
Sources
- Technical Overview of the Freetri E-361 — AddmotorMANUFACTURER MODEL PAGE
Source: addmotor.com/blog/freetri-e361-next-gen-semi-recumbent-folding-etrike
Retrieved August 30, 2026
- 20Ah Xuanwu Battery — Addmotor product pageMANUFACTURER BATTERY PAGE
Source: addmotor.com/products/20ah-xuanwu-battery-521
Retrieved August 29, 2026
- Addmotor Freetan M-368X Full-Suspension Semi-Recumbent eTrikeMANUFACTURER MODEL PAGE
Source: addmotor.com/products/freetan
Retrieved August 29, 2026