Halo Posted December 19, 2021 Posted December 19, 2021 I’ve a second 7.4v battery in its packet still but I’ve seen people using 8.4v, should I be taking it back to swap for an 8.4?
EDcase Posted December 19, 2021 Posted December 19, 2021 (edited) A 7.4v LiPo battery delivers the equivalent power to an 8.4v NiCd but in a smaller package. Does it show the specs? Edited December 19, 2021 by EDcase Rogerborg and Paul72 2
Halo Posted December 19, 2021 Author Posted December 19, 2021 5 hours ago, EDcase said: A 7.4v LiPo battery delivers the equivalent power to an 8.4v NiCd but in a smaller package. Does it show the specs? it’s a nuprol 1200mah 7.4v 20c skim deans
EDcase Posted December 19, 2021 Posted December 19, 2021 (edited) Its not a great battery but good enough for at least half a game day (maybe a whole one) with medium amount of shooting (not auto all the time). Edited December 19, 2021 by EDcase Paul72 and Rogerborg 2
Halo Posted December 20, 2021 Author Posted December 20, 2021 Is there a performance benefit in a 8.4 version? I’ve a mosfet inside also so the stock battery had to be removed to allow a slimmer one in there
Supporters Rogerborg Posted December 20, 2021 Supporters Posted December 20, 2021 8 hours ago, Halo said: Is there a performance benefit in a 8.4 version? vvv On 19/12/2021 at 02:03, EDcase said: A 7.4v LiPo battery delivers the equivalent power to an 8.4v NiCd but in a smaller package. That. And different chemistries means you can't really compare like for like. Notionally an 8.4V NiMH should spin a no-load motor a little faster than a 7.4V LiPo, but those aren't the voltages that you'll actually see. Most chargers will take a lipo up to a reliable 3.7V per cell i.e. 8.4V for a 2-cell rather than 7.4V. A NiMH "8.4V" pack is 7 x 1.2V cells in series but chargers don't know that. All they can do is to stuff charge in until the battery resistance spikes / the charging current drops, which might be at any point depending on the worst cell in the pack. So much for voltage. The lithium cell will also be able to deliver more power, and will deliver it more consistently as it discharges, which will let your motor pull the spring as fast as it's able to. They both work, I'm not saying that you must get lithium based cells, but I prefer them. Halo and Paul72 2
BigStew Posted December 21, 2021 Posted December 21, 2021 (edited) On 19/12/2021 at 01:11, Halo said: I’ve a second 7.4v battery in its packet still but I’ve seen people using 8.4v, should I be taking it back to swap for an 8.4? I would put money on the reason people are using an 8.4v nicad is that it came with the gun or they pulled it out of storage after 15 years. Edited December 21, 2021 by BigStew
Cannonfodder Posted December 21, 2021 Posted December 21, 2021 I use a 7.4v LiPo as its an easier fit Paul72 1
Halo Posted December 31, 2021 Author Posted December 31, 2021 Even with the 7.4 slim in there it’s abit of a pain in the ass and the butt plate seems to need jamming in against the wiring which can’t be a good thing! is there kind of any 1-2cm extension plates perhaps to allow a little room without going full stock etc? It’s the PDW version
Supporters Rogerborg Posted December 31, 2021 Supporters Posted December 31, 2021 I went for practicality over posability and binned off the charging handle. No more HK slap, but a fair bit more room in the tube. Also, I rear wired mine, as I couldn't be doing with all that fiddling around at the front. There's room to run wires behind the gearbox up to the tube. Deans connector, of course. With all of that done, I can actually get a 116mm x 17mm x 13mm 7.4V lipo in there with a small mosfet as well. Paul72 and Ebeneezer Goode 2
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