I have a TM M4 not the same version as the one you're looking at but I am able to last a day with my mini 8.4v with 1000mAh. If you want to not waste BBs and power consider going low cap, best investment I made.
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YANHCHAN'S AIRSMITHING: AEG repair/Tune up/Upgrades V2/V3 mechboxes, rewiring/reconnecting.
Ask not what your country can do for you; ask what you can do for your country ~John F. Kennedy
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