TJM Projecta dc-dc charger Supercharge Allrounder

Submitted: Tuesday, Jun 18, 2019 at 20:46
ThreadID: 138560 Views:4221 Replies:4 FollowUps:1
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I have a 79 series fitted with a TJM / Projecta dc-dc charger DC25A
second battery is a Supercharge MRV70L 105AH all rounder. I understand these are a calcium / calcium battery but unsure if i should use the calcium setting in the heat of the NT. There is nothing on the battery to identify the charge rate.
Battery runs a 40l Engel. Anyone running a similar set up?

There are 4 different charging profiles,
GEL 14.1v
AGM 14.4v
WET 14.7v
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Reply By: Allan B (Sunshine Coast) - Tuesday, Jun 18, 2019 at 21:13

Tuesday, Jun 18, 2019 at 21:13
Hi Veight,

The "Supercharge All Rounder" is essentially a flooded hybrid battery, capable of supplying the starter and suitable (somewhat) of also serving as a cycling auxiliary battery. The charging profile of "Wet 14.7v" should suit it.
It is not listed as a calcium/calcium battery although, as with many batteries, some calcium is used its the plate construction.

You could contact Supercharge on 1300 228 837 for further advice.


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AnswerID: 626280

Follow Up By: OzzieCruiser - Wednesday, Jun 19, 2019 at 11:20

Wednesday, Jun 19, 2019 at 11:20
The allrounder is a calcium battery.
FollowupID: 900028

Reply By: Batt's - Tuesday, Jun 18, 2019 at 22:54

Tuesday, Jun 18, 2019 at 22:54
I have the exact same battery for my starter battery it also runs a Waeco CDF11 console fridge. I have a 110w solar panel permanently wired to the battery via a pwm solar regulator set on lead acid it charges the battery fine set it up in november 2017. I know it's not the same as your charger but just thought I'd mention the lead acid setting works for me.
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Reply By: HKB Electronics - Wednesday, Jun 19, 2019 at 09:45

Wednesday, Jun 19, 2019 at 09:45
It is marketed as a auto battery for most makes and models. Cars charging systems these days run around the 13.5V - 14.4V at 24C so to be fit for purpose it should be able to be charged by any voltage within that range but for cyclic use the higher end would be beneficial. Either the AGM or WET should suffice but worth checking if you can, for instance the Century Marine Pro batteries are a wet cell type but the maximum charge voltage recommended is 14.4V and they do gas freely at that voltage.

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AnswerID: 626287

Reply By: veight - Friday, Jun 28, 2019 at 19:53

Friday, Jun 28, 2019 at 19:53
As a follow up i got a email from supercharge
"Thanks for your enquiry MVR70L is a flooded lead-calcium battery. You may use the setting for calcium".

I have decided to use the Wet setting and have done 3200km over the last 10 days and had no issues. Thanks for the reply's.

AnswerID: 626426

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