For nearly six years I have been conversing with Xantrex and asking them to make important changes to the Echo Charger manual. Quite often I have had to spend time trouble shooting a device that is working properly but because the owners manual is incorrect, poorly written, misleading and missing adequate wiring diagrams customers have had to pony up money for me to tell them their device is either fine but the XANTREX manual is wrong or wired incorrectly because the owners manual is completely lacking.
Over the last six years or so I have spoken with Xantrex multiple times documenting changes that really should occur in this manual. I have spoke with Mariana twice, she is their head of technical support, and numerous tech support folks and one enginner. I have spoken with service reps in Indiana and also Prashant one of lead tech guys up in BC.
Promises have been made and yet its now been nearly TWO years since and the horribly written manual is still unchanged.
The Basics:
1) The manual is VERY, VERY unclear that this device needs to be fed from the HOUSE bank and that ALL charge sources, solar, wind, shore or alternator MUST be attached to the house bank not the battery switch. Most competent installers know this, but DIY's rarely pick up on this.
This device should not be used with a factory wired 1/2/BOTH/OFF switch where the alternator or other source feeds back through the starter cable or connects to the "C" post of the batts switch. The Charge sources need to be re-routed to the house bank for the Echo Charger to work properly. If wired to the "C" post you can have a non-charging event for your house bank.
2) The Echo Charger does not work backwards and will not work in reverse. It is NOT a combiner. If your starting bank is wired to position #2 on the battery switch and the charge sources are feeding it first because of the battery switch position, eg: factory wiring scenario, the Echo Charger will do NOTHING other than sit there and look pretty and your house bank will never get charged when the second battery is selected.
If you are a "bank alternator" meaning you switch which bank you use and alternate them from day to day or outing to outing, the Echo Charger is NOT the device for this situation. This should be made very clear. It is only designed to "top up" the 1/2Ah to 1 Ah discharges associated with starting an engine.
3) The Echo Charger DOES NOT TURN OFF WHEN THE START BATTERY IS FULL but the manual does not make this as clear as it could. I will quote the manual here:
Quote:
Originally Posted by Xantrex
When the input voltage is 13.0/25.5 volts DC or higher, echo-charge automatically switches ON. The LED glows a steady green.
|
<tbody>
</tbody>
So far so good but the input voltage for the Echo is always measured at the HOUSE bank therefore all charge sources need to be fed to the HOUSE bank first. No charge voltage at house bank no charging out to the second bank.
Quote:
Originally Posted by Xantrex
When the input voltage is lower than 13.0/25.5 volts, the echo-charge automatically switches OFF, and the LED blinks green.
|
<tbody>
</tbody>
Again this is correct information. When the house bank voltage drops below 13.0 Volts the unit turns off. This is the only situation where it turns off.
The unit never turns off otherwise! This is not made clear and really should be. The Echo DOES NOT turn off when the start battery is full as many owners AND professional installers incorrectly assume it does. Lifeline batteries for example suggests to not trickle charge their batteries. So, if using a Lifeline AGM mixed with a wet house bank you be over charging your Lifeline's if floating your wet house bank.
13+ volts is
ON, less than 13 volts is
OFF. The state of charge of the start or reserve battery DOES NOT turn the device on or off UNLESS it is greater than a 10V difference and then the Echo shuts off or won't turn on at all. They need to make this clear that the Echo does not turn off when the start battery is "full"..
4) Back to the manual:
Quote:
Originally Posted by Xantrex
If the input voltage is above 14.4 volts (or 28.8), output will be limited to a maximum of 14.4/28.8 volts.
|
<tbody>
</tbody>
This is accurate and good because who wants to feed a fully charged battery at 14.5-14.8 volts despite the "low current".. The limit of 14.4 volts is a good one UNLESS you have a GEL starting battery.. There should be a warning in the manual that mixing GEL and other battery types can cause over charging of the GEL starter.
5) Charge with ANY DC CHARGE SOURCE:
Xantrex said:
The Digital echo-charge is designed to operate with any DC charging
source to charge the starter or auxiliary battery.
Great we understand that it can do this, with any DC charge source, HOW ABOUT SOME WIRING DIAGRAMS FOR THE OTHER CHARGE SOURCES...? There is but one drawing that is the only wiring diagram in the manual. It is unlabeled and quite poor. It also does not make clear why the Echo must only charge a start or reserve battery and never be used to charge a larger deep cycled house bank.
6) "Connect black wire to battery negative." Xantrex also makes battery monitors but makes no mention and shows no diagram for how to wire the Echo to a shunt so that the current it is taking from the house battery can be calculated by the battery monitor. For an accurate battery monitor the Echo black/negative needs to be wired to the load side of the house bank shunt. A simple wiring diagram would help. I have had to fix this issue on multiple occasions.
7) "Float Condition"
Xantrex said:
When it reaches 14.4/28.8 volts, the charge current will decrease, maintaining a float condition. The starter battery will be fully charged without overcharging.
This is NOT a float. Float is a VOLTAGE not a current or "condition" The Echo Charger DOES NOT go into float mode when the start battery is full. As the start battery fills it SELF LIMITS what current it will accept. Low current is NOT a "float" even as Xantrex defines it in many of their other manuals. The device does have some voltage drop in it but it absolutely does not do a "float voltage" when the start battery is full.
All this device does is follow the terminal voltage of the house bank, limit the voltage to the start battery to 14.4V and turn on & off at 13.0V. It also drops some voltage across it but they also make no mention of that in the manual.
I have met with many owners complaining that the "float voltage" is too high.. Yes it is because there is NO FLOAT voltage until the house bank goes into float mode. It only follows the voltage of the house bank. As long as your house bank is in bulk or absorption, which it can be for many, many hours, the start battery will be seeing higher than charging "float voltages"...
So in summary:
1) The Echo does not shut off when the start battery is full. This is not made clear.
2) Charge sources like wind, solar, alternator and charger need to be fed directly to the house bank not the battery switch. This needs to be made clear and an updated wiring diagram to reflect all charge sources "ANY DC CHARGE SOURCE" is needed.
3) The Echo Charger is a ONE WAY device. Senses voltage FROM the house bank TO the starter bank. It will not work backwards. It is not a combiner. It should never be wired to charge a deep cycled bank. This needs to be stressed and made clearer. You should NOT use this device if you alternate battery banks. People have tried....
4) It does not do a float voltage unless the house bank is also in float mode.
5) In a mixed system GEL starter and AGM or Wet house bank you CAN over charge the GEL battery.
6) Drastically in need of better and more descriptive wiring diagrams. Shunt wiring for a house bank battery monitor should also be addressed.
I could not locate my emails to Mariana so this is just off the top of my head. The email to Xantrex was more in-depth..
Hope this helps put my rant into perspective.