Review: SanHo Hyperjuice 2 100Wh

 

Finally took the plunge to buy a Hyperjuice 2 PowerBank for my MacBooks (either my company issued Macbook Pro Retina 15 or my own Macbook Air 13). Due to the nature of my job, I don’t usually go back to office as most of the time I’m at clients’ sites. During the time where I’m not, I will work on the designs and documentation that I need to complete. I think a lot of people will choose a cafe and enjoy a cuppa while doing this.

This is no different for me. But those living in Singapore will know that this may have quite a bit of restrictions if you want to look for power plugs, or worst still, for those who are driving, finding an affordable carpark with power plugs and good cup of coffee where you can stay for hours can be a pretty challenging task. In addition to this, internet access is also desirable and usually either you will have a mobile broadband dongle, mobile broadband modems/routers or simply tethering from your mobile phone. For me I used to come from mobile broadband dongles, to modems/routers and finally to tethering. Seriously to bring more things along means there are additional weight or things that you may eventually lose due to whatever reasons. So using tethering from mobile seems to be the way for me. So battery becomes an issue and I bring along a Powerbank.

To achieve my “total mobility” to have mobile power for both my mobile and Macbook for the whole day out in the field, I hope with Hyperjuice2, this will help me to do that. Now to the depths of my review for this battery! 🙂

Hyperjuice2 Official Specifications

Model MBP2-100
Capacity 100-watt-hour (27,000mAh)
Battery Chemistry Lithium Ion
MacBook Battery Life Up to 26 hours
iPad mini Battery Life Up to 71 hours
iPad (1G & 2G) Battery Life Up to 50 hours
iPad (3G & 4G) Battery Life Up to 34 hours
iPhone Battery Life Fully recharge the iPhone up to 19 times
Dimensions 8.0 x 4.8 x 0.9 inches (204 x 123 x 24 mm)
Weight 1.6 pounds (0.73 kg)
DC Output Power 14.5~18.5V (4.5A max)
USB Output Power 2 x 12W, 5V (2.4A max)
AC Power Supply  Input Power Output Power 100V~240V (1.2A max) 18.5V, 2.5A
Time to full charge 3-4 hours

Hyperjuice Official Power Chart

Link: http://www.hypershop.com/MBP2-100.html

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hyperjuice-review-02

Review

Before I start with the review, a few pictures on how the Hyperjuice 2 looks like. First, I was given a customised cable with a magsafe connector (not the magic box) and it actually works. the hyperjuice is pretty nice looking in person. Official ratings at the back of the unit.

hyperjuice-review-06 hyperjuice-review-08hyperjuice-review-07

Pictures on the LCD information panel

hyperjuice-review-04 hyperjuice-review-05

Test Procedure

The test procedure that I undertook is simple.

  1. Discharge Macbook Pro Retina 15 to 0%
  2. Fully charge Hyperjuice 2 to 100%
  3. Let both units cool down for 1/2 hour
  4. Charge Macbook Pro Retina 15 with lid closed till Hyperjuice 2 goes lights out and can’t be power-on

A few pictures to show:

hyperjuice-review-03hyperjuice-review-10 hyperjuice-review-11 hyperjuice-review-12 hyperjuice-review-13 hyperjuice-review-14 hyperjuice-review-09

There is a caveat why I need to get a Hyperjuice2 instead of a 1.5. In fact if you ask me, I would prefer a bigger capacity more than 100wh (27,000mAh). Reason is simple. The more juice you have in the battery, the longer you can last.

However there is a technical constraint on the amount of power required for Macbook Pro Retina due to the higher wattage and amperage. In fact the new Macbook Pro Retina 15 requires 20V with 4.25A of output power before you can start to charge based on the power adapter. After looking for quite a while I couldn’t really find other brands of power banks that could give me the same as this with nice looking casing except for Hyperjuice.

If you do not mind too much about looks at size + low USB power charging port (~1A), you can give BixPower a look. They have a few powerbanks that are pretty good and they have power connectors for Mac as well. This is one of the units that I was looking at but I’m not satisfied by the USB charging capabilities as I’m using Samsung Galaxy Note 2 which requires a 2A USB port.

Anyway below shows the testing charts and the actual mileage you could potentially get from your unit if you purchase one. In my example, I’m using a Macbook Pro Retina 15 (Late 2013) unit which has 95Wh battery within. By the charts above, it should provide a 1-1 power which obviously does not. (See below for more)

Power Efficiency – Charging / Discharging on Workload

Cycle Hours to full
charge
(HyperJuice2)
Device for charging % of Device
(before
charge)
% of Device
(after charge)
Mode of
device
Remarks
1 ~ 4 hours Macbook Pro Retina 15 6 86 Power-off Discharge @ 30deg Celsius
2 ~ 4 hours Macbook Pro Retina 15 0 76 Power-off Discharge @ 40deg Celsius
3 ~ 4 hours Macbook Pro Retina 15 0 79 Power-off Discharge @ 45deg Celsius
4 ~ 4 hours Macbook Pro Retina 15 0 78 Power-off Discharge @ 42deg Celsius

After logging a ticket to Hyper, the support gave the response that typical batteries or power banks will experience a loss of 20% so even given that the specifications state the same number of hours the battery can provide to my macbook or any other devices, in actual fact you would want to take off 20% from that equation. Thus beware of this caveat before you purchase this. My personal thoughts is that they should reflect the actual efficiency and estimation rather than the paper specifications.

Other Features and Notes

This power bank does support a few other features that’s not exactly mentioned and I also found out some other options for parts replacement if required to.

  • The HyperJuice 2 can be used together in parallel with your device when plugged into the wall socket. So this is good news for those who do not like to bring along your Macbook charger when you have your power bank with you.
  • The Hyper Juice 2 however, during the plugged in state, will still continue to discharge power to your device and it seems to be at a slower rate. So this would probably mean that the battery is not capable of handling both charges at the same time. For road warriors, you may want to take this into consideration whether bringing your power adapter for the power bank is worthwhile or not.
  • HyperJuice 2 is modular, means that the parts can be replaced when it fails. I’ve checked with Hyper support, the cost price for the replacement battery is USD$149 at this point.

I hope this review will help some of us make a decision point whether to buy it or not. For me it’s still good for me though I’m expecting 90% of efficiency but technically it’s not possible. I was hoping they have a unit with a higher capacity for the modular model but unfortunately, it’s not available as of now.

 

6 Comments

  1. Pieter April 29, 2014 8:55 pm  Reply

    According to Hyper Support:

    “Unfortunately it is not recommended to charge the HyperJuice battery while its plugged into the Macbook. If you would like to do this, the only way is to use the charger that came with the battery (white power brick) to charge the battery and charge the Macbook using the Modified adapter separately.

    Charging the battery while its charging the Macbook will break the circuit board on the battery (the output power of the battery is higher than what its taking from the wall adapter).”

    Which seems odd, or at least an design flaw…

    • Vicardo Ng April 30, 2014 10:51 am  Reply

      I certainly agree in that sense but based on real life usage, pass through charging is achievable though the mileage varies. In fact, the load of your mac makes a difference due to power consumption. I cannot get my Hyperjuice to charge when it’s running a tad heavier load on the mac and it will continue to discharge but after the mac is charged fully, hyperjuice will continue to charge. Again does this apply to Hyperjuice 1.5 or not, I’m not too sure.

      • Pieter April 30, 2014 1:32 pm  Reply

        Well, according to Hyper this might actually BREAK your HyperJuice battery. I see this as ​a design flaw… Some conservation with Hyper support:

        (Hyper) > “Unfortunately it is not recommended to charge the HyperJuice battery while its plugged into the Macbook. …-snip-… Charging the battery while its charging the Macbook will break the circuit board on the battery (the output power of the battery is higher than what its taking from the wall adapter).”

        (Me) “That’s a good idea actually, I will forward that to our engineering team maybe they can do something about it.”

        N.B. I am using the HyperJuice 2 (same model as in your review).

      • Pieter April 30, 2014 1:35 pm  Reply

        Well, according to Hyper this might actually BREAK your HyperJuice battery. I see this as ​a design flaw… A conservation with Hyper support:

        (Hyper): “Unfortunately it is not recommended to charge the HyperJuice battery while its plugged into the Macbook. …-snip-… Charging the battery while its charging the Macbook will break the circuit board on the battery (the output power of the battery is higher than what its taking from the wall adapter).”

        (Me): “OK, wouldn’t it be a good idea to disable the OUT port while charging in that case? In my opinion this kind of products should always be designed in such a way that a user just can’t do anything wrong: If a plug fits, it should be OK (or at least it shouldn’t break anything).”

        (Hyper): “That’s a good idea actually, I will forward that to our engineering team maybe they can do something about it.”

        N.B. I am using the HyperJuice 2 (same model as in your review).

        • Vicardo Ng May 7, 2014 4:49 pm  Reply

          That’s rather unfortunate if you ask me. I would rather that they can find a way out to do passthrough charging if you ask me. And I do agree that it’s certainly a design flaw for sure in this kind of scenario so it’s certainly not something that should be done in the first place. Imagine getting a USD$400 brick eventually down the road. Not something that I want to see or worst, killing my macbook in the process

  2. Pieter April 30, 2014 1:34 pm  Reply

    Well, according to Hyper this might actually BREAK your HyperJuice battery. I see this as ​a design flaw… A conservation with Hyper support:

    (Hyper): “Unfortunately it is not recommended to charge the HyperJuice battery while its plugged into the Macbook. …-snip-… Charging the battery while its charging the Macbook will break the circuit board on the battery (the output power of the battery is higher than what its taking from the wall adapter).”

    (Me): “OK, wouldn’t it be a good idea to disable the OUT port while charging in that case? In my opinion this kind of products should always be designed in such a way that a user just can’t do anything wrong: If a plug fits, it should be OK (or at least it shouldn’t break anything).”

    (Hyper): “That’s a good idea actually, I will forward that to our engineering team maybe they can do something about it.”

    N.B. I am using the HyperJuice 2 (same model as in your review).

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