Exposure one-cell piggyback battery review

Add run time to your light

Our rating 
4.0 out of 5 star rating 4.0
GBP £40.00 RRP | USD $49.99

Our review

Clever and economical way to add run time to your Exposure light
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Exposure include a clever ‘Smart Port’ on the back of several of their lights that allows for the addition of remote switches, extra front or rear LED emitters – or one of two piggyback battery packs to extend run times.


Our single-cell test unit adds nearly an hour to Exposure’s biggest MaXx-D and more than doubles the run time on smaller lights like the Diablo. At the recent 24 Hours of Moab, that allowed us to comfortably run the Diablo at full power from start to finish of each lap – with power to spare – instead of having to toggle between different light levels to extend the battery life. 

Unfortunately, though, the £40 (US$49.99) asking price doesn’t include an additional charger so users will have to swap batteries sequentially once one is fully topped up – effectively doubling the charge time. An extra charger will cost another £19.99 ($29.99). 


If you need even more juice (say for a solo 24-hour event), Exposure also offer triple the capacity for only twice the price, again with mounting hardware included. Either option is an easy add-on to Exposure’s clever modular system and one that’s hard not to justify if dawn is just a bit too far off.

Product Specifications


Name Piggyback Single Cell Battery (09)
Brand Exposure

Weight (g) 84
Features * Works with all 2008+ Exposure rechargable lights * Example: * Joystick burn times 3hr/10hr/24hr (Max - High - Low) * Joystick with Single Cell Piggyback battery 6hr/20hr/48hr (Max - High - Low) * Available as single (or triple cells) and supplied with velcro attachment strap and fitting block * Recharge with standard charger used for Exposure Lights - fitting included with battery * Mountable under the stem, to the helmet (single), on the light unit itself (walking) or carried in your pocket or backpack (triple) * Cable lengths: Single 38cm
Type of Battery Required Lithium-Ion