I haven't heard anything about the Dolphin Rechargeable - whether it will be discontinued, whether it will soldier on in Mk V guise, or will we see a Mk VI version soon?
Anyway, I have seen the MkVs in Bunnings for A$88 recently, but no discounts, so feel free to draw your own conclusions. But the D.R. is Eveready Australia's flagship, so I expect it to continue. (I love mine!)
The on-button has a see-through neoprene(?) cover, through which the charging indicator lights show.
A 6V, 4.2Ah SLA sits in the battery well, topped by a charge controller / discharge cutout circuit, incorporating the charging jack.
This means you have to take the head off to charge the torch, but before you think this is a crude or primitive arrangement, please remember this is a genuine Dolphin we are talking about, this torch has to be completely watertight, as yes Virginia, even the Rechargeable Dolphin floats.
(A slight digression - another poster asked whether the Dolphin still floats. The answer is yes - and that is why the torch has grown in recent restyles - the extra bouyancy offsets the weight of the 529-style 4F alkaline battery - a MkV (at least) will float even with an alkaline battery on board)
Supplied with the torch are a 12V 700mA wall wart, colour-matched to the torch body, and a 12V cigarette lighter cord.
The reflector and bulbholder, indeed the whole head is identical with the standard Dolphin, apart from colour. It is just silvered plastic. This is why I am so confident in telling people that you can go up to a 10W bulb without melting a reflector.
Interestingly, Eveready's claim on the pack for the HPR71 bulb is "300% brighter than the standard vacuum bulb". Now that is the (argon) PR12 at 38.1 bulb lumens, so note that Eveready doesn't claim anything like the 210 bulb lumens that Philips do. Their "300%" claim is in the same ballpark as the 162 b.l. that I interpolated from L.L.'s destructive test data.
If Eveready were to upgrade the Rechageable Dolphin, the next step up in brightness would be to a 15W HPR72 bulb, which I think would require a metal reflector, but would cut the runtime a lot. Mind you, we would be looking at 320 claimed bulb lumens... But unless Eveready can find more than 4.2Ah of batteries to fill that space, I expect the same spec to be retained.