Grunhelm GP-20B (137524)
![]() | Outdated Product Battery capacity: Capacity (mAh): 20000; Battery capacity (W*h): 74; Real capacity (mAh): 12600; Battery type: Li-Pol; USB-C (pcs): 1; USB-A (pcs): 2; USB-C1 (W): 10.5; USB-A1 (W): 10.5; USB-A2 (W): 10.5; Bundled cables (adapters): Features: Body material: plastic; Dimensions (mm): 137x69x28 E-Catalog uses affiliate links compensated by our partners. |
Grunhelm GP-20B 20000 mAh 20000 mAh | |||||||||||||||||||||||||||||||||||||||||||||||||
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The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Grunhelm 2026 - new arrivals, bestsellers, and the most relevant models Grunhelm.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Grunhelm 2026 - new arrivals, bestsellers, and the most relevant models Grunhelm.



