All use the very best genuine Sanyo
NCR18650GA 3500 mAh Lithium Ion cells. We do not use junk batteries. Here
is the manufacturers data sheet for the technically minded.
I am very pleased to
be able to announce a very significant advance in my battery technology
for which my new generation of lamps were designed and may be regarded as
a new standard of lighting technology.
The first candidate
for the new technology was the 2 cell 8V series power pack, these new
technology packs are identifiable by a red band round the cable. The lamp
initially tested with this new power pack is the Dragon D1200 which
utilises 4 X Cree XPG2s simultaneously.
On the earlier pack
the lamp on standard mode would output 250 lumens for over 12 hours, a
good performance as it was. On the new it does the same but then
continues to burn on a reducing output for a full 24 hours. This is not BS
but actual test.
The bugbear of my
superlamps all along has been the fact that a depleted power pack would
suddenly switch off leaving the user in complete darkness. The same has
also been true of some other lamps, a fact that Mr Biff made a point about
when he first introduced his low voltage Rude Nora.
This is now a thing of
The big attraction of
low voltage lamps has always been the ‘slow death’ of a depleting battery,
however it has been impossible to produce lamps outputting over a 1000
lumens utilising this low voltage technology. It is now possible however
to have this 'slow death' effect on higher voltage lamps.
This is giving
remarkable results on the low voltage lamps. Initial testing of a
4V pack on a low voltage Dragon D800 gave a standard mode output of 200 lumens
sustained for a full 18 hours, then a diminishing output after.
The new power pack is
included at same price as before of £125
Stand alone battery
packs will be available for £30, or £25 to existing customers.
4 cell power packs supplied prior to
February 2014, Trigons and some X3000s.
It is highly recommended that you upgrade
to a new flat pack (as shown below) for increased lamp power and burn
times plus no longer suddenly dieing on you.
Price is £55 plus postage.
Power pack is sealed
waterproof, shockproof and explosion proof ABS plastic internally potted.
IP67 waterproof, 1
metre submersion for up to 30 minutes.
roof contact etc.
chemistry breakdown causing cell venting, case lid forces off and vents to
Max safe discharge
limit of cells 10 amps
discharge electronic control 4.3 amps, over current test delay: 10ma; auto
recovery after over current protection
Max charge voltage
8.55V (Dedicated charger cut off is 8.4) Overcharge test delay: 100ms;
Overcharge resume voltage: 8.16 ±0.05V
Min voltage on
discharge 5V. Over discharge test voltage: 4.80V±0.1V; over discharge test
delay: 25ma; over discharge recover voltage: 6.0V±0.10V
protection. Short circuit protection test delay: <=500us; auto recovery
after short circuit protection
2 cell power packs