QualificationExact sourced interface · in-enclosure thermal behaviour unqualified
ArticleBatterySpace product 5447 / CU-MM157-V1 · lifepo4
ProtectionIntegrated protection circuit fitted
Capacity9900 mAh at 12.8 V = 126.72 Wh
Voltage window10 V cutoff → 12.8 V nominal → 14.6 V full
Body165 × 137 × 28 mm
Swell allowanceNot documented for this wrapped pack; consumer must establish retention/compression clearance
Current limits3.4 A charge · 7 A continuous discharge
Terminationflying-leads · 152.4 mm leads
Geometry authority: declared-envelope
Datum: Published pack envelope lower corner at the origin; +X is 165 mm length, +Y is 137 mm width, and +Z is the 28 mm wrapped-pack thickness.
The solid is the source-published 165 × 137 × 28 mm maximum wrapped-pack envelope, not manufacturer CAD. Select order option CU-MM157-V1 with combined charge/discharge leads. The source gives 152.4 mm lead length and 18 AWG but does not dimension the wire exit, bend radius, strain relief, compression allowance, fuse, or installed clearance; those remain consumer-owned. The product source says UN38.3 passed but is not installation, weather, charging, or fire qualification. It gives a 0 °C minimum charging warning but no complete operating-temperature range.