Having said that the bass radiators at each end are rubber diaphragms and you need to be a little careful you don’t accidentally pierce them. The speaker should sit horizontally – it is not a 360° sound speaker.
The USB-C charge port, 3.5m audio port and USB-A port are under a rear rubber flap. Naturally, you must close it for IPX7.
Dimensions 22 x 9.5 x 9.3cm x .96kg and you can get it in a huge range of colours. This is a great tradie or camper’s speaker
The battery is 7500mAh (3.6V/2.08A, 7500mAh, 27Wh). Five LEDs indicate the remaining charge, and we found these do equate to 20% increments. The sound volume and quality were unaffected from 100-0%.
In our test at 50% volume, we got over 20 hours, and 75% volume was 15 hours.
It is a USB-C device meaning it will accept USB-C power delivery. Having said that it made little difference using a 5V/2A or 5V/3A – both took around 4 hours. In theory, it should charge faster with a Qualcomm Quick Charge 3.0 or later adapter.
We recharged a Samsung Galaxy S10+ (4000mAh) via the USB-A 5V/2A output, and it took an expected 10 hours. The USB-A is the only charge port – you cannot use the USB-C.
BT and Multipoint
BT 4.2 LE has a range of about 10 metres, and it performed well to this distance. Multipoint allows it to pair to two devices.
It has JBL Connect+ that allows it to pair with up to 100 Charge 4s although at $15K for 100 speakers we do not see much call for this. You can also pair two for stereo which we do see a call for.
RRP $199.95 but shop around, and you will get it at Officeworks for $148 – making this excellent value.
GadgetGuy’s take: JBL Charge 4 is one of the best mono waterproof speakers I have heard.
I have tried most – Ultimate Ears, Altec Lansing, Braven, Marshal, Bose, Sony etc. This has the edge in low-end bass and battery life.
If you want stereo, then the JBL Link is hard to beat. Mono for parties – stereo for serious listening and then you need good L/R separation, so two speakers are best.